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function wp_ajax_health_check_get_sizes() {
	_doing_it_wrong(
		'wp_ajax_health_check_get_sizes',
		sprintf(
			/* translators: 1: The Site Health action that is no longer used by core. 2: The new function that replaces it. */
			__( 'The Site Health check for %1$s has been replaced with %2$s.' ),
			'wp_ajax_health_check_get_sizes',
			'WP_REST_Site_Health_Controller::get_directory_sizes'
		),
		'5.6.0'
	);

	check_ajax_referer( 'health-check-site-status-result' );

	if ( ! current_user_can( 'view_site_health_checks' ) || is_multisite() ) {
		wp_send_json_error();
	}

	if ( ! class_exists( 'WP_Debug_Data' ) ) {
		require_once ABSPATH . 'wp-admin/includes/class-wp-debug-data.php';
	}

	$sizes_data = WP_Debug_Data::get_sizes();
	$all_sizes  = array( 'raw' => 0 );

	foreach ( $sizes_data as $name => $value ) {
		$name = sanitize_text_field( $name );
		$data = array();

		if ( isset( $value['size'] ) ) {
			if ( is_string( $value['size'] ) ) {
				$data['size'] = sanitize_text_field( $value['size'] );
			} else {
				$data['size'] = (int) $value['size'];
			}
		}

		if ( isset( $value['debug'] ) ) {
			if ( is_string( $value['debug'] ) ) {
				$data['debug'] = sanitize_text_field( $value['debug'] );
			} else {
				$data['debug'] = (int) $value['debug'];
			}
		}

		if ( ! empty( $value['raw'] ) ) {
			$data['raw'] = (int) $value['raw'];
		}

		$all_sizes[ $name ] = $data;
	}

	if ( isset( $all_sizes['total_size']['debug'] ) && 'not available' === $all_sizes['total_size']['debug'] ) {
		wp_send_json_error( $all_sizes );
	}

	wp_send_json_success( $all_sizes );
}