function.php

<?php
/**
 * Plugin Name: Delete GD post
 * Plugin URI: http://buddydevelopers.com
 * Description: plugin to delete Gd posts
 */

/**
* Place this file in wp-content/mu-plugins/ folder. 
*
* Run command 
* wp gddelete post
***/

/**
 * Class to plugin to delete Gd posts
 */

if (  defined( 'WP_CLI' ) && WP_CLI ) {
	class GD_Delete_Post_Command extends WP_CLI_Command {

		/**
		 * upload video poster image by url given.
		 * @return none
		 */
		public function post(){
			$args = array(
					'post_type' => 'gd_place',
					'posts_per_page' => 1
				);
			$query = new WP_Query( $args );

			    // The Loop
			    $the_query = new WP_Query( $args );
			    if ( $the_query->have_posts() ) {
				while ( $the_query->have_posts() ) {
				    $the_query->the_post();
				    $post_id = get_the_ID();
				    WP_CLI::log( 'Place ID: ' . $post_id );
				    wp_delete_post( $post_id, true);
				    WP_CLI::log( 'Place deleted' );
				}
				wp_reset_postdata();
				WP_CLI::success('Successfully deleted all Place');
			    }
		}

	}

	WP_CLI::add_command( 'gddelete', 'GD_Delete_Post_Command' );
}