Source

File: wp-admin/includes/privacy-tools.php

function _wp_privacy_resend_request( $request_id ) {
	$request_id = absint( $request_id );
	$request    = get_post( $request_id );

	if ( ! $request || 'user_request' !== $request->post_type ) {
		return new WP_Error( 'privacy_request_error', __( 'Invalid request.' ) );
	}

	$result = wp_send_user_request( $request_id );

	if ( is_wp_error( $result ) ) {
		return $result;
	} elseif ( ! $result ) {
		return new WP_Error( 'privacy_request_error', __( 'Unable to initiate confirmation request.' ) );
	}

	return true;
}