[Peace-Maker]

Part of this extension was included in SourceMod 1.11 recently.
https://github.com/alliedmodders/sourcemod/pull/1247

Accelerator74 added two forwards

PHP Code:

/**
 * Called when a client is speaking.
 *
 * @param client        The client index
 */
forward void OnClientSpeaking(int client);

/**
 * Called once a client speaking end.
 *
 * @param client        The client index
 */
forward void OnClientSpeakingEnd(int client);