Tribe__Events__Community__Submission_Handler::add_message( $message, $type = 'update' )
Source
File: src/Tribe/Submission_Handler.php
public function add_message( $message, $type = 'update' ) {
$message = apply_filters( 'tribe_events_community_submission_message', $message, $type );
$this->messages[] = (object) array( 'message' => $message, 'type' => $type );
}