bp_document_get_document_activity( $activity_id )

function bp_document_get_document_activity( $activity_id ) {

	if ( ! bp_is_active( 'activity' ) ) {
		return false;
	}

	$result = bp_activity_get(
		array(
			'in' => $activity_id,
		)
	);

	if ( empty( $result['activities'][0] ) ) {
		return false;
	}

	/**
	 * Filters the document activity object being displayed.
	 *
	 * @param object $activity The document activity.
	 *
	 * @since BuddyBoss 1.4.0
	 */
	return apply_filters( 'bp_document_get_document_activity', $result['activities'][0] );
}