diff --git a/API_REFERENCE.md b/API_REFERENCE.md
index a2b30ee..4933745 100755
--- a/API_REFERENCE.md
+++ b/API_REFERENCE.md
@@ -10,21 +10,29 @@ We do our best to keep this document up-to-date with the latest version of the A
 4. [AP Group Management](#ap-group-management)
 5. [Site Management](#site-management)
 6. [Network Management](#network-management)
-7. [User Management](#user-management)
-8. [User Group Management](#user-group-management)
-9. [Guest Management](#guest-management)
-10. [Firewall Management](#firewall-management)
-11. [Routing and Health](#routing-and-health)
-12. [Device Management](#device-management)
-13. [Tag Management](#tag-management)
-14. [Rogue AP Management](#rogue-ap-management)
-15. [Backup Management](#backup-management)
-16. [Admin Management](#admin-management)
-17. [WLAN Group Management](#wlan-group-management)
-18. [DNS Management](#dns-management)
-19. [System Management](#system-management)
-20. [Statistics](#statistics)
-21. [Debug and Utility Methods](#debug-and-utility-methods)
+7. [WLAN Configuration](#wlan-configuration)
+8. [User Management](#user-management)
+9. [User Group Management](#user-group-management)
+10. [Guest Management](#guest-management)
+11. [Voucher and Hotspot Management](#voucher-and-hotspot-management)
+12. [Firewall Management](#firewall-management)
+13. [Routing and Health](#routing-and-health)
+14. [Device Management](#device-management)
+15. [Firmware and Updates](#firmware-and-updates)
+16. [Tag Management](#tag-management)
+17. [Rogue AP Management](#rogue-ap-management)
+18. [Events and Alarms](#events-and-alarms)
+19. [Backup Management](#backup-management)
+20. [Admin Management](#admin-management)
+21. [WLAN Group Management](#wlan-group-management)
+22. [DNS Management](#dns-management)
+23. [DPI and Port Statistics](#dpi-and-port-statistics)
+24. [Dynamic DNS Management](#dynamic-dns-management)
+25. [RADIUS Management](#radius-management)
+26. [Advanced Settings](#advanced-settings)
+27. [System Management](#system-management)
+28. [Statistics](#statistics)
+29. [Debug and Utility Methods](#debug-and-utility-methods)
 
 ## Connection Management
 
@@ -45,10 +53,10 @@ Creates a new instance of the UniFi API client.
 **Parameters:**
 - `$user` (string): Username for the UniFi controller
 - `$password` (string): Password for the UniFi controller
-- `$baseurl` (string): Base URL of the UniFi controller (must include 'https://' prefix)
+- `$baseurl` (string): Base URL of the UniFi controller (must include 'https://' prefix, port suffix like :8443 required for non-UniFi OS controllers)
 - `$site` (string|null): Short site name to access (default: 'default')
 - `$version` (string|null): Controller version number (default: '8.0.28')
-- `$ssl_verify` (bool): Whether to validate SSL certificate (default: false)
+- `$ssl_verify` (bool): Whether to validate SSL certificate of the UniFi controller (default: false)
 - `$unificookie_name` (string): Name of the cookie to use (default: 'unificookie')
 
 **Throws:**
@@ -85,37 +93,34 @@ Logs out from the UniFi controller.
 
 ### List Clients
 ```php
-public function list_clients(?string $mac = null, ?string $site_id = null): array
+public function list_clients(?string $mac = null): array
 ```
 Lists all clients or a specific client.
 
 **Parameters:**
 - `$mac` (string|null): MAC address of the client to list
-- `$site_id` (string|null): Site ID to use (default: current site)
 
 **Returns:** array - Array of client objects
 
 ### Block Client
 ```php
-public function block_sta(string $mac, ?string $site_id = null): bool
+public function block_sta(string $mac): bool
 ```
 Blocks a client from accessing the network.
 
 **Parameters:**
 - `$mac` (string): MAC address of the client to block
-- `$site_id` (string|null): Site ID to use (default: current site)
 
 **Returns:** bool - true upon success
 
 ### Unblock Client
 ```php
-public function unblock_sta(string $mac, ?string $site_id = null): bool
+public function unblock_sta(string $mac): bool
 ```
 Unblocks a client from accessing the network.
 
 **Parameters:**
 - `$mac` (string): MAC address of the client to unblock
-- `$site_id` (string|null): Site ID to use (default: current site)
 
 **Returns:** bool - true upon success
 
@@ -243,38 +248,65 @@ Edits the name of a client.
 
 ### List Access Points
 ```php
-public function list_aps(?string $mac = null, ?string $site_id = null): array
+public function list_aps(?string $mac = null): array
 ```
 Lists all access points or a specific access point.
 
 **Parameters:**
 - `$mac` (string|null): MAC address of the AP to list
-- `$site_id` (string|null): Site ID to use (default: current site)
 
 **Returns:** array - Array of access point objects
 
 ### Set AP Radio Settings
 ```php
-public function set_ap_radiosettings(
-    string $ap_id,
-    ?string $radio = null,
-    ?string $channel = null,
-    ?string $ht = null,
-    ?string $tx_power_mode = null,
-    ?string $tx_power = null,
-    ?string $site_id = null
-): bool
+public function set_ap_radiosettings(string $ap_id, string $radio, int $channel, int $ht, string $tx_power_mode, int $tx_power): bool
 ```
 Configures radio settings for an access point.
 
 **Parameters:**
 - `$ap_id` (string): ID of the access point
-- `$radio` (string|null): Radio to configure ('ng' or 'na')
-- `$channel` (string|null): Channel to set
-- `$ht` (string|null): HT mode to set
-- `$tx_power_mode` (string|null): TX power mode to set
-- `$tx_power` (string|null): TX power level to set
-- `$site_id` (string|null): Site ID to use (default: current site)
+- `$radio` (string): Radio to configure ('ng' for 2.4GHz or 'na' for 5GHz)
+- `$channel` (int): Channel to set
+- `$ht` (int): Channel width in MHz (e.g., 20, 40, 80, 160)
+- `$tx_power_mode` (string): TX power mode ('auto', 'medium', 'high', 'low', or 'custom')
+- `$tx_power` (int): TX power level in dBm (only used when tx_power_mode is 'custom')
+
+**Returns:** bool - true upon success
+
+### Set AP WLAN Group
+```php
+public function set_ap_wlangroup(string $type_id, string $device_id, string $group_id): bool
+```
+Assigns a WLAN group to an access point.
+
+**Parameters:**
+- `$type_id` (string): Type identifier
+- `$device_id` (string): Device ID of the access point
+- `$group_id` (string): WLAN group ID to assign
+
+**Returns:** bool - true upon success
+
+### Rename AP
+```php
+public function rename_ap(string $ap_id, string $ap_name): bool
+```
+Renames an access point.
+
+**Parameters:**
+- `$ap_id` (string): ID of the access point
+- `$ap_name` (string): New name for the access point
+
+**Returns:** bool - true upon success
+
+### Locate AP
+```php
+public function locate_ap(string $mac, bool $enable): bool
+```
+Enables or disables LED locate mode on an access point.
+
+**Parameters:**
+- `$mac` (string): MAC address of the access point
+- `$enable` (bool): true to enable locate mode, false to disable
 
 **Returns:** bool - true upon success
 
@@ -334,15 +366,22 @@ Lists all sites available to the current user.
 
 **Returns:** array - Array of site objects
 
+### Site Statistics
+```php
+public function stat_sites(): array
+```
+Retrieves statistics for all sites.
+
+**Returns:** array - Array of site statistics
+
 ### Create Site
 ```php
-public function create_site(string $name, string $desc = ''): bool
+public function create_site(string $description): bool
 ```
 Creates a new site.
 
 **Parameters:**
-- `$name` (string): Name of the new site
-- `$desc` (string): Description of the new site
+- `$description` (string): Description/name of the new site
 
 **Returns:** bool - true upon success
 
@@ -376,7 +415,7 @@ Sets the country settings for the current site.
 
 **Parameters:**
 - `$country_id` (string): ID of the country settings
-- `$payload` (mixed): Country configuration data
+- `$payload` (object|array): Country configuration data
 
 **Returns:** bool - true upon success
 
@@ -388,7 +427,7 @@ Sets the locale settings for the current site.
 
 **Parameters:**
 - `$locale_id` (string): ID of the locale settings
-- `$payload` (mixed): Locale configuration data
+- `$payload` (object|array): Locale configuration data
 
 **Returns:** bool - true upon success
 
@@ -400,7 +439,7 @@ Sets the SNMP settings for the current site.
 
 **Parameters:**
 - `$snmp_id` (string): ID of the SNMP settings
-- `$payload` (mixed): SNMP configuration data
+- `$payload` (object|array): SNMP configuration data
 
 **Returns:** bool - true upon success
 
@@ -412,7 +451,7 @@ Sets the management settings for the current site.
 
 **Parameters:**
 - `$mgmt_id` (string): ID of the management settings
-- `$payload` (mixed): Management configuration data
+- `$payload` (object|array): Management configuration data
 
 **Returns:** bool - true upon success
 
@@ -424,7 +463,7 @@ Sets the guest access settings for the current site.
 
 **Parameters:**
 - `$guest_access_id` (string): ID of the guest access settings
-- `$payload` (mixed): Guest access configuration data
+- `$payload` (object|array): Guest access configuration data
 
 **Returns:** bool - true upon success
 
@@ -435,8 +474,8 @@ public function set_site_ntp(string $ntp_id, $payload): bool
 Sets the NTP settings for the current site.
 
 **Parameters:**
-- `$ntp_id` (string): _id of the NTP settings
-- `$payload` (mixed): NTP configuration data
+- `$ntp_id` (string): ID of the NTP settings
+- `$payload` (object|array): NTP configuration data
 
 **Returns:** bool - true upon success
 
@@ -448,7 +487,18 @@ Sets the connectivity settings for the current site.
 
 **Parameters:**
 - `$connectivity_id` (string): ID of the connectivity settings
-- `$payload` (mixed): Connectivity configuration data
+- `$payload` (object|array): Connectivity configuration data
+
+**Returns:** bool - true upon success
+
+### Site LEDs
+```php
+public function site_leds(bool $enable): bool
+```
+Enables or disables LEDs for all devices at the site level.
+
+**Parameters:**
+- `$enable` (bool): true to enable LEDs, false to disable
 
 **Returns:** bool - true upon success
 
@@ -456,41 +506,166 @@ Sets the connectivity settings for the current site.
 
 ### List Networks
 ```php
-public function list_networkconf(?string $network_id = '')
+public function list_networkconf(string $network_id = ''): array
 ```
-Lists all non-wireless networks for the current site. 
+Lists all non-wireless networks for the current site.
 
 **Parameters:**
-- `$network_id` (string|null): _id value of the network to get settings for
+- `$network_id` (string): Optional _id value of the network to get settings for
 
 **Returns:** array - Array of network objects
 
 ### Create Network
 ```php
-public function create_network(
-    string $name,
-    string $vlan_id,
-    string $purpose = 'corporate',
-    ?string $subnet = null,
-    ?string $dhcpd_enabled = null,
-    ?string $dhcpd_start = null,
-    ?string $dhcpd_stop = null,
-    ?string $dhcpd_leasetime = null,
-    ?string $site_id = null
-): bool
+public function create_network($payload): array|bool
 ```
 Creates a new network.
 
 **Parameters:**
-- `$name` (string): Name of the new network
-- `$vlan_id` (string): VLAN ID for the network
-- `$purpose` (string): Purpose of the network (default: 'corporate')
-- `$subnet` (string|null): Subnet for the network
-- `$dhcpd_enabled` (string|null): Whether DHCP is enabled
-- `$dhcpd_start` (string|null): DHCP start address
-- `$dhcpd_stop` (string|null): DHCP stop address
-- `$dhcpd_leasetime` (string|null): DHCP lease time
-- `$site_id` (string|null): Site ID to use (default: current site)
+- `$payload` (object|array): stdClass object or associative array containing the network configuration. Must be structured in the same manner as returned by list_networkconf()
+
+**Returns:** array|bool - Array containing a single object with details of the new network on success, false on failure
+
+### Update Network Settings
+```php
+public function set_networksettings_base(string $network_id, $payload): bool
+```
+Updates network settings.
+
+**Parameters:**
+- `$network_id` (string): The "_id" value for the network to update
+- `$payload` (object|array): Configuration to apply to the network
+
+**Returns:** bool - true upon success
+
+### Delete Network
+```php
+public function delete_network(string $network_id): bool
+```
+Deletes a network.
+
+**Parameters:**
+- `$network_id` (string): _id value of the network to delete
+
+**Returns:** bool - true upon success
+
+## WLAN Configuration
+
+### List WLAN Configurations
+```php
+public function list_wlanconf(string $wlan_id = ''): array
+```
+Lists wireless network configurations.
+
+**Parameters:**
+- `$wlan_id` (string): Optional _id value of the WLAN to fetch settings for
+
+**Returns:** array - Array of wireless network objects
+
+### Create WLAN
+```php
+public function create_wlan(
+    string $name,
+    string $x_passphrase,
+    string $usergroup_id,
+    string $wlangroup_id,
+    bool $enabled = true,
+    bool $hide_ssid = false,
+    bool $is_guest = false,
+    string $security = 'open',
+    string $wpa_mode = 'wpa2',
+    string $wpa_enc = 'ccmp',
+    ?bool $vlan_enabled = null,
+    ?string $vlan_id = null,
+    bool $uapsd_enabled = false,
+    bool $schedule_enabled = false,
+    array $schedule = [],
+    ?array $ap_group_ids = null,
+    array $payload = []
+): bool
+```
+Creates a new wireless network.
+
+**Parameters:**
+- `$name` (string): SSID name
+- `$x_passphrase` (string): Pre-shared key (8-63 characters, or null when security='open')
+- `$usergroup_id` (string): User group ID (from list_usergroups())
+- `$wlangroup_id` (string): WLAN group ID (from list_wlan_groups())
+- `$enabled` (bool): Enable/disable WLAN (default: true)
+- `$hide_ssid` (bool): Hide/unhide SSID (default: false)
+- `$is_guest` (bool): Apply guest policies (default: false)
+- `$security` (string): Security type: 'open', 'wep', 'wpapsk', 'wpaeap' (default: 'open')
+- `$wpa_mode` (string): WPA mode: 'wpa', 'wpa2', 'wpa3' (default: 'wpa2')
+- `$wpa_enc` (string): Encryption: 'auto', 'ccmp', 'tkip' (default: 'ccmp')
+- `$vlan_enabled` (bool|null): Enable/disable VLAN (ignored as of v1.1.73)
+- `$vlan_id` (string|null): VLAN "_id" from list_networkconf()
+- `$uapsd_enabled` (bool): Enable U-APSD (default: false)
+- `$schedule_enabled` (bool): Enable WLAN schedule (default: false)
+- `$schedule` (array): Schedule rules array
+- `$ap_group_ids` (array|null): Array of AP group IDs (required for controller v6.0+)
+- `$payload` (array): Additional parameters (wlan_bands, wpa3_support, etc.)
+
+**Returns:** bool - true upon success
+
+### Set WLAN Settings (Base)
+```php
+public function set_wlansettings_base(string $wlan_id, $payload): bool
+```
+Updates WLAN settings with full configuration control.
+
+**Parameters:**
+- `$wlan_id` (string): _id of the WLAN to update
+- `$payload` (object|array): Configuration to apply, structured like list_wlanconf() output
+
+**Returns:** bool - true upon success
+
+### Set WLAN Settings
+```php
+public function set_wlansettings(string $wlan_id, string $x_passphrase, string $name = ''): bool
+```
+Updates basic WLAN settings (password and optionally name).
+
+**Parameters:**
+- `$wlan_id` (string): _id of the WLAN to update
+- `$x_passphrase` (string): New pre-shared key
+- `$name` (string): Optional new SSID name
+
+**Returns:** bool - true upon success
+
+### Disable/Enable WLAN
+```php
+public function disable_wlan(string $wlan_id, bool $disable): bool
+```
+Disables or enables a WLAN.
+
+**Parameters:**
+- `$wlan_id` (string): _id of the WLAN
+- `$disable` (bool): true to disable, false to enable
+
+**Returns:** bool - true upon success
+
+### Delete WLAN
+```php
+public function delete_wlan(string $wlan_id): bool
+```
+Deletes a WLAN.
+
+**Parameters:**
+- `$wlan_id` (string): _id of the WLAN to delete
+
+**Returns:** bool - true upon success
+
+### Set WLAN MAC Filter
+```php
+public function set_wlan_mac_filter(string $wlan_id, string $mac_filter_policy, bool $mac_filter_enabled, array $macs): bool
+```
+Configures MAC address filtering for a WLAN.
+
+**Parameters:**
+- `$wlan_id` (string): _id of the WLAN
+- `$mac_filter_policy` (string): Filter policy ('allow' or 'deny')
+- `$mac_filter_enabled` (bool): Enable/disable MAC filtering
+- `$macs` (array): Array of MAC addresses to filter
 
 **Returns:** bool - true upon success
 
@@ -498,12 +673,9 @@ Creates a new network.
 
 ### List Users
 ```php
-public function list_users(?string $site_id = null): array
+public function list_users(): array
 ```
-Lists all users or users for a specific site.
-
-**Parameters:**
-- `$site_id` (string|null): Site ID to use (default: current site)
+Lists all users for the current site.
 
 **Returns:** array - Array of user objects
 
@@ -513,8 +685,7 @@ public function create_user(
     string $name,
     string $mac,
     ?string $hostname = null,
-    ?string $note = null,
-    ?string $site_id = null
+    ?string $note = null
 ): bool
 ```
 Creates a new user.
@@ -524,7 +695,6 @@ Creates a new user.
 - `$mac` (string): MAC address of the user
 - `$hostname` (string|null): Hostname of the user
 - `$note` (string|null): Note about the user
-- `$site_id` (string|null): Site ID to use (default: current site)
 
 **Returns:** bool - true upon success
 
@@ -586,7 +756,7 @@ public function list_guests(int $within = 8760): array
 Lists all guest clients.
 
 **Parameters:**
-- `$within` (int): Hours of history to retrieve (default: 8760)
+- `$within` (int): Hours of history to retrieve (default: 8760 = 1 year)
 
 **Returns:** array - Array of guest client objects
 
@@ -617,6 +787,78 @@ Revokes guest client authorization.
 
 **Returns:** bool - true upon success
 
+### Extend Guest Validity
+```php
+public function extend_guest_validity(string $guest_id): bool
+```
+Extends the authorization period for a guest.
+
+**Parameters:**
+- `$guest_id` (string): _id of the guest to extend authorization for
+
+**Returns:** bool - true upon success
+
+## Voucher and Hotspot Management
+
+### Create Hotspot Operator
+```php
+public function create_hotspotop(string $name, string $x_password, string $note = ''): bool
+```
+Creates a new hotspot operator account.
+
+**Parameters:**
+- `$name` (string): Name for the hotspot operator
+- `$x_password` (string): Clear text password for the hotspot operator
+- `$note` (string): Optional note to attach to the hotspot operator
+
+**Returns:** bool - true upon success
+
+### List Hotspot Operators
+```php
+public function list_hotspotop(): array
+```
+Lists all hotspot operators.
+
+**Returns:** array - Array of hotspot operator objects
+
+### Create Voucher
+```php
+public function create_voucher(
+    int $minutes,
+    int $count = 1,
+    int $quota = 0,
+    string $note = '',
+    ?int $up = null,
+    ?int $down = null,
+    ?int $megabytes = null
+): array
+```
+Creates guest access voucher(s).
+
+**Parameters:**
+- `$minutes` (int): Minutes the voucher is valid after activation
+- `$count` (int): Number of vouchers to create (default: 1)
+- `$quota` (int): Single or multi-use (0=multi-use, 1=single-use, n=multi-use n times, default: 0)
+- `$note` (string): Note text to add when printing voucher
+- `$up` (int|null): Upload speed limit in Kbps
+- `$down` (int|null): Download speed limit in Kbps
+- `$megabytes` (int|null): Data transfer limit in MB
+
+**Returns:** array - Array containing create_time timestamp of the voucher(s)
+
+**Note:** Use stat_voucher() to retrieve newly created voucher(s) by create_time
+
+### Revoke Voucher
+```php
+public function revoke_voucher(string $voucher_id): bool
+```
+Revokes a voucher.
+
+**Parameters:**
+- `$voucher_id` (string): _id value of the voucher to revoke
+
+**Returns:** bool - true upon success
+
 ## Firewall Management
 
 ### List Firewall Groups
@@ -626,7 +868,7 @@ public function list_firewallgroups(string $group_id = ''): array
 Lists all firewall groups or a specific group.
 
 **Parameters:**
-- `$group_id` (string): ID of specific group to list (default: empty string)
+- `$group_id` (string): ID of specific group to list (default: empty string for all)
 
 **Returns:** array - Array of firewall group objects
 
@@ -638,7 +880,7 @@ Creates a new firewall group.
 
 **Parameters:**
 - `$group_name` (string): Name of the new group
-- `$group_type` (string): Type of the group
+- `$group_type` (string): Type of the group (e.g., 'address-group', 'port-group', 'ipv6-address-group')
 - `$group_members` (array): Array of group members
 
 **Returns:** bool - true upon success
@@ -686,7 +928,7 @@ public function list_routing(string $route_id = ''): array
 Lists all routing information or a specific route.
 
 **Parameters:**
-- `$route_id` (string): ID of specific route to list (default: empty string)
+- `$route_id` (string): ID of specific route to list (default: empty string for all)
 
 **Returns:** array - Array of routing objects
 
@@ -726,10 +968,289 @@ public function list_devices($macs = []): array
 Lists detailed information about devices.
 
 **Parameters:**
-- `$macs` (array): Array of MAC addresses of specific devices to list
+- `$macs` (array|string): Array of MAC addresses or single MAC address of specific devices to list
 
 **Returns:** array - Array of device objects
 
+### Adopt Device
+```php
+public function adopt_device($macs): bool
+```
+Adopts one or more devices.
+
+**Parameters:**
+- `$macs` (array|string): Array of MAC addresses or single MAC address to adopt
+
+**Returns:** bool - true upon success
+
+### Advanced Adopt Device
+```php
+public function advanced_adopt_device(
+    string $mac,
+    string $inform_url = '',
+    string $ip = '',
+    string $type = 'unifi'
+): bool
+```
+Adopts a device with advanced options.
+
+**Parameters:**
+- `$mac` (string): MAC address of the device
+- `$inform_url` (string): Custom inform URL
+- `$ip` (string): IP address of the device
+- `$type` (string): Device type (default: 'unifi')
+
+**Returns:** bool - true upon success
+
+### Migrate Device
+```php
+public function migrate_device($macs, string $inform_url): bool
+```
+Migrates device(s) to another controller.
+
+**Parameters:**
+- `$macs` (array|string): MAC address(es) of device(s) to migrate
+- `$inform_url` (string): Inform URL of the target controller
+
+**Returns:** bool - true upon success
+
+### Cancel Migrate Device
+```php
+public function cancel_migrate_device($macs): bool
+```
+Cancels device migration.
+
+**Parameters:**
+- `$macs` (array|string): MAC address(es) of device(s)
+
+**Returns:** bool - true upon success
+
+### Restart Device
+```php
+public function restart_device($macs, string $reboot_type = 'soft'): bool
+```
+Restarts one or more devices.
+
+**Parameters:**
+- `$macs` (array|string): MAC address(es) of device(s) to restart
+- `$reboot_type` (string): Type of reboot: 'soft' or 'hard' (default: 'soft')
+
+**Returns:** bool - true upon success
+
+### Force Provision
+```php
+public function force_provision($mac): bool
+```
+Forces provisioning of a device.
+
+**Parameters:**
+- `$mac` (string|array): MAC address of device to provision
+
+**Returns:** bool - true upon success
+
+### Reboot CloudKey
+```php
+public function reboot_cloudkey(): bool
+```
+Reboots the CloudKey or UniFi OS Console.
+
+**Returns:** bool - true upon success
+
+### Disable/Enable AP
+```php
+public function disable_ap(string $ap_id, bool $disable): bool
+```
+Disables or enables an access point.
+
+**Parameters:**
+- `$ap_id` (string): ID of the access point
+- `$disable` (bool): true to disable, false to enable
+
+**Returns:** bool - true upon success
+
+### LED Override
+```php
+public function led_override(string $device_id, string $override_mode): bool
+```
+Overrides LED settings for a device.
+
+**Parameters:**
+- `$device_id` (string): ID of the device
+- `$override_mode` (string): LED mode: 'default', 'on', 'off'
+
+**Returns:** bool - true upon success
+
+### Move Device
+```php
+public function move_device(string $mac, string $site_id): bool
+```
+Moves a device to another site.
+
+**Parameters:**
+- `$mac` (string): MAC address of the device
+- `$site_id` (string): ID of the target site
+
+**Returns:** bool - true upon success
+
+### Delete Device
+```php
+public function delete_device(string $mac): bool
+```
+Deletes a device from the controller.
+
+**Parameters:**
+- `$mac` (string): MAC address of the device to delete
+
+**Returns:** bool - true upon success
+
+### Set Device Settings (Base)
+```php
+public function set_device_settings_base(string $device_id, $payload): bool
+```
+Updates device settings with full configuration control.
+
+**Parameters:**
+- `$device_id` (string): _id of the device
+- `$payload` (object|array): Configuration to apply
+
+**Returns:** bool - true upon success
+
+### Power Cycle Switch Port
+```php
+public function power_cycle_switch_port(string $mac, int $port_idx): bool
+```
+Power cycles a switch port (PoE).
+
+**Parameters:**
+- `$mac` (string): MAC address of the switch
+- `$port_idx` (int): Port index to power cycle
+
+**Returns:** bool - true upon success
+
+### Spectrum Scan
+```php
+public function spectrum_scan(string $mac): bool
+```
+Starts a spectrum scan on an access point.
+
+**Parameters:**
+- `$mac` (string): MAC address of the AP
+
+**Returns:** bool - true upon success
+
+### Spectrum Scan State
+```php
+public function spectrum_scan_state(string $mac): array
+```
+Retrieves spectrum scan state/results.
+
+**Parameters:**
+- `$mac` (string): MAC address of the AP
+
+**Returns:** array - Spectrum scan state data
+
+## Firmware and Updates
+
+### Check Controller Update
+```php
+public function check_controller_update(): array
+```
+Checks for controller software updates.
+
+**Returns:** array - Update information
+
+### Get UniFi OS Console Update
+```php
+public function get_update_os_console(): array
+```
+Retrieves available UniFi OS console updates.
+
+**Returns:** array - Update information
+
+**Note:** Only for UniFi OS-based controllers
+
+### Update UniFi OS Console
+```php
+public function update_os_console(): bool
+```
+Initiates UniFi OS console update.
+
+**Returns:** bool - true upon success
+
+**Note:** Only for UniFi OS-based controllers
+
+### Check Firmware Update
+```php
+public function check_firmware_update(): bool
+```
+Checks for device firmware updates.
+
+**Returns:** bool - true when updates are available
+
+### Upgrade Device
+```php
+public function upgrade_device(string $mac): bool
+```
+Upgrades firmware on a single device.
+
+**Parameters:**
+- `$mac` (string): MAC address of the device
+
+**Returns:** bool - true upon success
+
+### Upgrade All Devices
+```php
+public function upgrade_all_devices(string $type = 'uap'): bool
+```
+Upgrades firmware on all devices of a specific type.
+
+**Parameters:**
+- `$type` (string): Device type: 'uap' (default), 'usw', 'ugw', 'uxg'
+
+**Returns:** bool - true upon success
+
+### Upgrade Device (External Firmware)
+```php
+public function upgrade_device_external(string $firmware_url, $macs): bool
+```
+Upgrades device firmware from external URL.
+
+**Parameters:**
+- `$firmware_url` (string): URL to firmware file
+- `$macs` (array|string): MAC address(es) of device(s) to upgrade
+
+**Returns:** bool - true upon success
+
+### Start Rolling Upgrade
+```php
+public function start_rolling_upgrade(array $payload = ['uap', 'usw', 'ugw', 'uxg']): bool
+```
+Starts a rolling firmware upgrade.
+
+**Parameters:**
+- `$payload` (array): Array of device types to include in rolling upgrade
+
+**Returns:** bool - true upon success
+
+### Cancel Rolling Upgrade
+```php
+public function cancel_rolling_upgrade(): bool
+```
+Cancels an ongoing rolling upgrade.
+
+**Returns:** bool - true upon success
+
+### List Firmware
+```php
+public function list_firmware(string $type = 'available'): array
+```
+Lists firmware versions.
+
+**Parameters:**
+- `$type` (string): Type of firmware list: 'available', 'cached' (default: 'available')
+
+**Returns:** array - Array of firmware objects
+
 ## Tag Management
 
 ### List Tags
@@ -807,6 +1328,54 @@ Lists known rogue access points.
 
 **Returns:** array - Array of known rogue AP objects
 
+## Events and Alarms
+
+### List Events
+```php
+public function list_events(int $historyhours = 720, int $start = 0, int $limit = 3000): array
+```
+Lists system events.
+
+**Parameters:**
+- `$historyhours` (int): Hours of history to retrieve (default: 720 = 30 days)
+- `$start` (int): Starting index for pagination (default: 0)
+- `$limit` (int): Maximum number of events to return (default: 3000)
+
+**Returns:** array - Array of event objects
+
+### List Alarms
+```php
+public function list_alarms(array $payload = []): array
+```
+Lists alarms.
+
+**Parameters:**
+- `$payload` (array): Optional filter parameters
+
+**Returns:** array - Array of alarm objects
+
+### Count Alarms
+```php
+public function count_alarms(?bool $archived = null): int
+```
+Counts alarms.
+
+**Parameters:**
+- `$archived` (bool|null): Filter by archived status (true=archived, false=active, null=all)
+
+**Returns:** int - Number of alarms
+
+### Archive Alarm
+```php
+public function archive_alarm(string $alarm_id = ''): bool
+```
+Archives an alarm.
+
+**Parameters:**
+- `$alarm_id` (string): ID of the alarm to archive (empty to archive all)
+
+**Returns:** bool - true upon success
+
 ## Backup Management
 
 ### Generate Backup
@@ -816,7 +1385,7 @@ public function generate_backup(int $days = -1): array
 Generates a backup of the controller.
 
 **Parameters:**
-- `$days` (int): Number of days of history to include (default: -1)
+- `$days` (int): Number of days of history to include (default: -1 for all)
 
 **Returns:** array - Array containing backup information
 
@@ -853,7 +1422,7 @@ Generates a backup of the current site.
 ```php
 public function list_admins(): array
 ```
-Lists all administrators.
+Lists all administrators for the current site.
 
 **Returns:** array - Array of admin objects
 
@@ -861,7 +1430,7 @@ Lists all administrators.
 ```php
 public function list_all_admins(): array
 ```
-Lists all administrators including super admins.
+Lists all administrators including super admins across all sites.
 
 **Returns:** array - Array of admin objects
 
@@ -932,7 +1501,7 @@ Updates an administrator's settings.
 ```php
 public function revoke_admin(string $admin_id): bool
 ```
-Revokes an administrator's access.
+Revokes an administrator's access to the current site.
 
 **Parameters:**
 - `$admin_id` (string): ID of the admin to revoke
@@ -943,13 +1512,24 @@ Revokes an administrator's access.
 ```php
 public function delete_admin(string $admin_id): bool
 ```
-Deletes an administrator.
+Deletes an administrator completely.
 
 **Parameters:**
 - `$admin_id` (string): ID of the admin to delete
 
 **Returns:** bool - true upon success
 
+### Grant Super Admin
+```php
+public function grant_super_admin(string $admin_id): bool
+```
+Grants super admin privileges to an administrator.
+
+**Parameters:**
+- `$admin_id` (string): ID of the admin
+
+**Returns:** bool - true upon success
+
 ## WLAN Group Management
 
 ### List WLAN Groups
@@ -977,7 +1557,7 @@ public function create_dns_record(string $record_type, string $value, string $ke
 Creates a new DNS record in the UniFi controller.
 
 **Parameters:**
-- `$record_type` (string): Type of DNS record (e.g., 'A', 'AAAA', 'CNAME', etc.)
+- `$record_type` (string): Type of DNS record (e.g., 'A', 'AAAA', 'CNAME', 'MX', 'TXT')
 - `$value` (string): Value of the DNS record
 - `$key` (string): Key/name for the DNS record
 - `$ttl` (int|null): Time-to-live value in seconds (default: null)
@@ -996,6 +1576,291 @@ Deletes a DNS record from the UniFi controller.
 
 **Returns:** bool - true upon success
 
+## DPI and Port Statistics
+
+### List Port Forward Statistics
+```php
+public function list_portforward_stats(): array
+```
+Retrieves port forwarding statistics.
+
+**Returns:** array - Array of port forwarding statistics
+
+### List DPI Statistics
+```php
+public function list_dpi_stats(): array
+```
+Retrieves Deep Packet Inspection statistics.
+
+**Returns:** array - Array of DPI statistics
+
+### List Filtered DPI Statistics
+```php
+public function list_dpi_stats_filtered(string $type = 'by_cat', ?array $cat_filter = null): array
+```
+Retrieves filtered DPI statistics.
+
+**Parameters:**
+- `$type` (string): Return stats 'by_cat' (by category) or 'by_app' (by application) (default: 'by_cat')
+- `$cat_filter` (array|null): Array of numeric category IDs to filter by (only with 'by_app' type)
+
+**Returns:** array - Array of filtered DPI statistics
+
+### List Current Channels
+```php
+public function list_current_channels(): array
+```
+Lists currently allowed WiFi channels.
+
+**Returns:** array - Array of channel information
+
+### List Country Codes
+```php
+public function list_country_codes(): array
+```
+Lists available country codes.
+
+**Returns:** array - Array of country codes (ISO 3166-1 numeric standard)
+
+### List Port Forwarding
+```php
+public function list_portforwarding(): array
+```
+Lists port forwarding rules.
+
+**Returns:** array - Array of port forwarding rules
+
+### List Port Configurations
+```php
+public function list_portconf(): array
+```
+Lists port configurations.
+
+**Returns:** array - Array of port configuration objects
+
+### List Extensions
+```php
+public function list_extension(): array
+```
+Lists VoIP extensions.
+
+**Returns:** array - Array of VoIP extension objects
+
+## Dynamic DNS Management
+
+### List Dynamic DNS
+```php
+public function list_dynamicdns(): array
+```
+Lists dynamic DNS entries.
+
+**Returns:** array - Array of dynamic DNS objects
+
+### Create Dynamic DNS
+```php
+public function create_dynamicdns($payload): bool
+```
+Creates a dynamic DNS entry.
+
+**Parameters:**
+- `$payload` (object|array): Configuration structured like list_dynamicdns() output
+
+**Returns:** bool - true upon success
+
+### Update Dynamic DNS
+```php
+public function set_dynamicdns(string $dynamicdns_id, $payload): bool
+```
+Updates a dynamic DNS entry.
+
+**Parameters:**
+- `$dynamicdns_id` (string): _id of the dynamic DNS entry
+- `$payload` (object|array): Configuration to apply
+
+**Returns:** bool - true upon success
+
+## RADIUS Management
+
+### List RADIUS Profiles
+```php
+public function list_radius_profiles(): array
+```
+Lists RADIUS profiles.
+
+**Returns:** array - Array of RADIUS profile objects
+
+**Note:** Supported on controller versions 5.5.19+
+
+### List RADIUS Accounts
+```php
+public function list_radius_accounts(): array
+```
+Lists RADIUS accounts.
+
+**Returns:** array - Array of RADIUS account objects
+
+**Note:** Supported on controller versions 5.5.19+
+
+### Create RADIUS Account
+```php
+public function create_radius_account(
+    string $name,
+    string $x_password,
+    ?int $tunnel_type = null,
+    ?int $tunnel_medium_type = null,
+    ?string $vlan = null
+): array|bool
+```
+Creates a RADIUS account.
+
+**Parameters:**
+- `$name` (string): Name for the RADIUS account
+- `$x_password` (string): Password for the account
+- `$tunnel_type` (int|null): Tunnel type (1-13, see RADIUS standards)
+- `$tunnel_medium_type` (int|null): Tunnel medium type (1-15, see RADIUS standards)
+- `$vlan` (string|null): VLAN to assign
+
+**Returns:** array|bool - Array containing created account object upon success, false on failure
+
+**Note:** Supported on controller versions 5.5.19+
+
+### Update RADIUS Account
+```php
+public function set_radius_account_base(string $account_id, $payload): bool
+```
+Updates a RADIUS account.
+
+**Parameters:**
+- `$account_id` (string): _id of the account
+- `$payload` (object|array): Configuration to apply
+
+**Returns:** bool - true upon success
+
+**Note:** Supported on controller versions 5.5.19+
+
+### Delete RADIUS Account
+```php
+public function delete_radius_account(string $account_id): bool
+```
+Deletes a RADIUS account.
+
+**Parameters:**
+- `$account_id` (string): _id of the account to delete
+
+**Returns:** bool - true upon success
+
+**Note:** Supported on controller versions 5.5.19+
+
+## Advanced Settings
+
+### Set Guest Login Settings
+```php
+public function set_guestlogin_settings(
+    bool $portal_enabled,
+    bool $portal_customized,
+    bool $redirect_enabled,
+    string $redirect_url,
+    string $x_password,
+    int $expire_number,
+    int $expire_unit,
+    string $section_id
+): bool
+```
+Updates guest login settings.
+
+**Parameters:**
+- `$portal_enabled` (bool): Enable guest portal
+- `$portal_customized` (bool): Use customized portal
+- `$redirect_enabled` (bool): Enable redirect after authentication
+- `$redirect_url` (string): URL to redirect to
+- `$x_password` (string): Guest access password
+- `$expire_number` (int): Expiration number
+- `$expire_unit` (int): Expiration unit (minutes, hours, days)
+- `$section_id` (string): _id of the guest access section
+
+**Returns:** bool - true upon success
+
+### Set Guest Login Settings (Base)
+```php
+public function set_guestlogin_settings_base($payload, string $section_id = ''): bool
+```
+Updates guest login settings with full configuration control.
+
+**Parameters:**
+- `$payload` (object|array): Configuration structured like list_settings() output for "guest_access"
+- `$section_id` (string): Optional _id of the guest access section
+
+**Returns:** bool - true upon success
+
+### Set IPS Settings (Base)
+```php
+public function set_ips_settings_base($payload): bool
+```
+Updates IPS/IDS settings.
+
+**Parameters:**
+- `$payload` (object|array): Configuration structured like list_settings() output for "ips"
+
+**Returns:** bool - true upon success
+
+### Set Super Management Settings (Base)
+```php
+public function set_super_mgmt_settings_base(string $settings_id, $payload): bool
+```
+Updates "Super Management" settings.
+
+**Parameters:**
+- `$settings_id` (string): _id for the site settings where key='super_mgmt'
+- `$payload` (object|array): Configuration to apply
+
+**Returns:** bool - true upon success
+
+### Set Super SMTP Settings (Base)
+```php
+public function set_super_smtp_settings_base(string $settings_id, $payload): bool
+```
+Updates "Super SMTP" settings.
+
+**Parameters:**
+- `$settings_id` (string): _id for the site settings where key='super_smtp'
+- `$payload` (object|array): Configuration to apply
+
+**Returns:** bool - true upon success
+
+### Set Super Identity Settings (Base)
+```php
+public function set_super_identity_settings_base(string $settings_id, $payload): bool
+```
+Updates "Super Controller Identity" settings.
+
+**Parameters:**
+- `$settings_id` (string): _id for the site settings where key='super_identity'
+- `$payload` (object|array): Configuration to apply
+
+**Returns:** bool - true upon success
+
+### Set Element Adoption
+```php
+public function set_element_adoption(bool $enable): bool
+```
+Enables or disables element adoption.
+
+**Parameters:**
+- `$enable` (bool): true to enable, false to disable
+
+**Returns:** bool - true upon success
+
+### Execute Stats Command
+```php
+public function cmd_stat(string $command): bool
+```
+Executes a specific stats command.
+
+**Parameters:**
+- `$command` (string): Command to execute (currently only 'reset-dpi' is supported)
+
+**Returns:** bool - true upon success
+
 ## System Management
 
 ### List Device Name Mappings
@@ -1014,6 +1879,75 @@ Lists information about the current user.
 
 **Returns:** array - Array containing current user information
 
+### List Settings
+```php
+public function list_settings(): array
+```
+Lists all settings for the current site.
+
+**Returns:** array - Array of settings objects
+
+### System Information
+```php
+public function stat_sysinfo(): array
+```
+Retrieves system information.
+
+**Returns:** array - Array containing system information
+
+### Get System Log
+```php
+public function get_system_log(
+    string $class = 'device-alert',
+    ?int $start = null,
+    ?int $end = null,
+    int $page_number = 0,
+    int $page_size = 100,
+    array $custom_payload = []
+): array
+```
+Retrieves system logs.
+
+**Parameters:**
+- `$class` (string): Log class to retrieve (default: 'device-alert')
+- `$start` (int|null): Start timestamp
+- `$end` (int|null): End timestamp
+- `$page_number` (int): Page number for pagination (default: 0)
+- `$page_size` (int): Number of entries per page (default: 100)
+- `$custom_payload` (array): Additional custom parameters
+
+**Returns:** array - Array of log entries
+
+### List Models
+```php
+public function list_models(): ?object
+```
+Lists device models known to the site.
+
+**Returns:** object|null - Object containing device model information
+
+### List Device States
+```php
+public function list_device_states(): array
+```
+Lists device states.
+
+**Returns:** array - Array of device state objects
+
+### Custom API Request
+```php
+public function custom_api_request(string $path, string $method = 'GET', $payload = null, string $return = 'array'): mixed
+```
+Makes a custom API request to the controller.
+
+**Parameters:**
+- `$path` (string): API endpoint path
+- `$method` (string): HTTP method: 'GET', 'POST', 'PUT', 'DELETE', 'PATCH' (default: 'GET')
+- `$payload` (mixed): Request payload for POST/PUT/PATCH requests
+- `$return` (string): Return type: 'array', 'json', 'boolean' (default: 'array')
+
+**Returns:** mixed - Response in the specified format
+
 ## Statistics
 
 ### Site Statistics
@@ -1152,7 +2086,7 @@ public function stat_allusers(int $historyhours = 8760): array
 Retrieves information about all users.
 
 **Parameters:**
-- `$historyhours` (int): Hours of history to retrieve (default: 8760)
+- `$historyhours` (int): Hours of history to retrieve (default: 8760 = 1 year)
 
 **Returns:** array - Array containing user information
 
@@ -1185,7 +2119,7 @@ public function stat_voucher(?int $create_time = null): array
 Retrieves voucher statistics.
 
 **Parameters:**
-- `$create_time` (int|null): Creation time of specific voucher
+- `$create_time` (int|null): Creation timestamp of specific voucher
 
 **Returns:** array - Array containing voucher statistics
 
@@ -1204,12 +2138,22 @@ Retrieves payment statistics.
 
 ### Set Debug Mode
 ```php
-public function set_debug(bool $debug): void
+public function set_debug(bool $enable): bool
 ```
 Enables or disables debug mode.
 
 **Parameters:**
-- `$debug` (bool): Whether to enable debug mode
+- `$enable` (bool): true to enable debug mode, false to disable
+
+**Returns:** bool - Current debug status
+
+### Get Debug Status
+```php
+public function get_debug(): bool
+```
+Retrieves the current debug mode status.
+
+**Returns:** bool - true if debug mode is enabled
 
 ### Get Last Error Message
 ```php
@@ -1221,19 +2165,23 @@ Retrieves the last error message.
 
 ### Get Last Results
 ```php
-public function get_last_results_raw(): mixed
+public function get_last_results_raw(bool $return_json = false): mixed
 ```
 Retrieves the last raw results from the API.
 
-**Returns:** mixed - Last raw results
+**Parameters:**
+- `$return_json` (bool): Whether to return results as JSON string (default: false)
 
-### Get Cookies
+**Returns:** mixed - Last raw results (array or JSON string)
+
+### Get Cookie
 ```php
+public function get_cookie(): string
 public function get_cookies(): string
 ```
-Retrieves the current cookies.
+Retrieves the current session cookie(s).
 
-**Returns:** string - Current cookies
+**Returns:** string - Current cookie value
 
 ### Get Cookie Creation Time
 ```php
@@ -1243,29 +2191,119 @@ Retrieves the timestamp when the cookies were created.
 
 **Returns:** int - Timestamp of cookie creation
 
-### Get Base URL
+### Set Cookies
 ```php
-public function get_baseurl(): string
+public function set_cookies(string $cookies_value): void
 ```
-Retrieves the base URL of the UniFi controller.
+Sets the session cookies manually.
 
-**Returns:** string - Base URL
+**Parameters:**
+- `$cookies_value` (string): Cookie value to set
 
-### Get Site
+### Get UniFi Cookie Name
+```php
+public function get_unificookie_name(): string
+```
+Retrieves the UniFi cookie name.
+
+**Returns:** string - Cookie name
+
+### Get/Set Site
 ```php
 public function get_site(): string
+public function set_site(string $site): string
 ```
-Retrieves the current site name.
+Gets or sets the current site.
+
+**Parameters (set_site):**
+- `$site` (string): Short site name to switch to
 
 **Returns:** string - Current site name
 
-### Get Version
+### Get/Set cURL Method
 ```php
-public function get_version(): string
+public function get_curl_method(): string
+public function set_curl_method(string $curl_method): string
 ```
-Retrieves the controller version.
+Gets or sets the cURL HTTP method.
 
-**Returns:** string - Controller version
+**Parameters (set_curl_method):**
+- `$curl_method` (string): HTTP method ('GET', 'POST', 'PUT', 'DELETE', 'PATCH')
+
+**Returns:** string - Current cURL method
+
+**Throws (set_curl_method):**
+- `InvalidCurlMethodException`
+
+### Get/Set SSL Verification
+```php
+public function get_curl_ssl_verify_peer(): bool
+public function set_curl_ssl_verify_peer(bool $curl_ssl_verify_peer): bool
+
+public function get_curl_ssl_verify_host(): int
+public function set_curl_ssl_verify_host(int $curl_ssl_verify_host): bool
+```
+Gets or sets SSL verification settings.
+
+**Parameters:**
+- `$curl_ssl_verify_peer` (bool): Enable/disable peer verification
+- `$curl_ssl_verify_host` (int): Host verification level (0, 1, or 2)
+
+**Returns:** Current setting value
+
+### Get/Set UniFi OS Flag
+```php
+public function get_is_unifi_os(): bool
+public function set_is_unifi_os(bool $is_unifi_os): bool
+```
+Gets or sets the UniFi OS flag.
+
+**Parameters (set_is_unifi_os):**
+- `$is_unifi_os` (bool): true if controller is UniFi OS-based
+
+**Returns:** bool - Current UniFi OS flag status
+
+### Get/Set Connection Timeout
+```php
+public function get_connection_timeout(): int
+public function set_connection_timeout(int $timeout): bool
+```
+Gets or sets the connection timeout.
+
+**Parameters (set_connection_timeout):**
+- `$timeout` (int): Connection timeout in seconds
+
+**Returns:**
+- `get_connection_timeout()`: int - Current timeout in seconds
+- `set_connection_timeout()`: bool - true upon success
+
+### Get/Set Request Timeout
+```php
+public function get_curl_request_timeout(): int
+public function set_curl_request_timeout(int $timeout): bool
+```
+Gets or sets the cURL request timeout.
+
+**Parameters (set_curl_request_timeout):**
+- `$timeout` (int): Request timeout in seconds
+
+**Returns:**
+- `get_curl_request_timeout()`: int - Current timeout in seconds
+- `set_curl_request_timeout()`: bool - true upon success
+
+### Get/Set HTTP Version
+```php
+public function get_curl_http_version(): int
+public function set_curl_http_version(int $http_version): bool
+```
+Gets or sets the HTTP version for cURL requests.
+
+**Parameters (set_curl_http_version):**
+- `$http_version` (int): cURL HTTP version constant (e.g., CURL_HTTP_VERSION_1_1, CURL_HTTP_VERSION_2_0)
+
+**Returns:**
+- `get_curl_http_version()`: int - Current HTTP version
+- `set_curl_http_version()`: bool - true upon success
 
 ### Get Class Version
 ```php
@@ -1273,4 +2311,23 @@ public function get_class_version(): string
 ```
 Retrieves the version of this API client class.
 
-**Returns:** string - Class version 
\ No newline at end of file
+**Returns:** string - Class version (currently '2.0.9')
+
+---
+
+## Notes
+
+- Most methods require a successful login() before use
+- Methods that accept the `$site_id` parameter typically default to the current site if not specified
+- Many methods accept flexible `$payload` parameters that should be structured like their corresponding list/get methods
+- Boolean return values typically indicate success (true) or failure (false)
+- Array return values contain response data from the controller
+- For UniFi OS-based controllers, some methods and endpoints differ from traditional controllers
+- Timestamps are typically Unix timestamps (seconds since epoch)
+- MAC addresses should be in lowercase format with colons (e.g., 'aa:bb:cc:dd:ee:ff')
+
+## Version Information
+
+This documentation corresponds to UniFi API Client version **2.0.9**.
+
+For more examples and usage information, visit the [GitHub repository](https://github.com/Art-of-WiFi/UniFi-API-client).
diff --git a/src/Client.php b/src/Client.php
index 2bbda43..94b2bec 100755
--- a/src/Client.php
+++ b/src/Client.php
@@ -3848,7 +3848,7 @@ class Client
      * Get a list of all UniFi device models present in the current site.
      *
      * @note This endpoint is available in Network Application/Controller version 9.2.x onwards.
-     * @return object|null An object, or null on failure. The `model_list` property of the results object contains an
+     * @return object|null An object, or null on failure. The `model_list` property of the `results` object contains an
      *                     array of device models.
      * @throws Exception
      */