[ 'api_token' => '', 'bot_username' => '', 'channel_username' => '', // Channel username to send message 'channel_signature' => '' // This will be assigned in the footer of message ], 'twitter' => [ 'consurmer_key' => '', 'consurmer_secret' => '', 'access_token' => '', 'access_token_secret' => '' ], 'facebook' => [ 'app_id' => '', 'app_secret' => '', 'default_graph_version' => '', 'page_access_token' => '' ] ];