<?php 
add_action( 'init', function() {

	register_post_meta( 'page', 'wd_custom_header_options', [
		'show_in_rest' => true,
		'single' => true,
		'type' => 'string',
    'auth_callback'     => function() {
        return current_user_can( 'edit_posts' );
    }
	] );
	register_post_meta( 'page', 'wd_sticky_header', [
		'show_in_rest' => true,
		'single' => true,
		'type' => 'boolean',
    'auth_callback'     => function() {
        return current_user_can( 'edit_posts' );
    }
	] );
	register_post_meta( 'page', 'wd_transparent_header', [
		'show_in_rest' => true,
		'single' => true,
		'type' => 'boolean',
    'auth_callback'     => function() {
        return current_user_can( 'edit_posts' );
    }
	] );
	register_post_meta( 'page', 'wd_header_cap', [
		'show_in_rest' => true,
		'single' => true,
		'type' => 'boolean',
    'auth_callback'     => function() {
        return current_user_can( 'edit_posts' );
    }
	] );
 
	
} );