cpt.php

<?php

$args_cpt = [
			'public'          => true,
			'show_ui'         => true,
			'capability_type' => 'post',
			'hierarchical'    => false,
			'rewrite'         => [
				'slug'       => 'test-cpt',
				'with_front' => true,
			],
			'has_archive'     => 'test-cpt',
			'menu_icon'       => 'dashicons-location',
			'query_var'       => true,
			'show_in_rest'    => true,
			'rest_base'       => 'test-cpt',
			'supports'        => [
				'title',
				'editor',
				'excerpt',
				'author',
				'thumbnail',
				'revisions',
				'custom-fields',
				'page-attributes',
				'publicize',
				'wpcom-markdown',
			],
		];

		register_post_type( 'test-cpt', $args_cpt );