bp_activity_get_action( string $component_id, string $key )

function bp_activity_get_action( $component_id, $key ) {

	// Return false if any of the above values are not set.
	if ( empty( $component_id ) || empty( $key ) ) {
		return false;
	}

	$actions = bp_activity_get_actions();
	$retval  = false;

	if ( isset( $actions->{$component_id}->{$key} ) ) {
		$retval = $actions->{$component_id}->{$key};
	}

	/**
	 * Filters the current action by component and key.
	 *
	 * @since BuddyPress 1.1.0
	 *
	 * @param string|bool $retval       The action key.
	 * @param string      $component_id The unique string ID of the component.
	 * @param string      $key          The action key.
	 */
	return apply_filters( 'bp_activity_get_action', $retval, $component_id, $key );
}