Applies if `prettify` is `true`. Default 0.
	 * @return string The CSS declarations.
	 */
	public function get_declarations_string( $should_prettify = false, $indent_count = 0 ) {
		$declarations_array  = $this->get_declarations();
		$declarations_output = '';
		$indent              = $should_prettify ? str_repeat( "\t", $indent_count ) : '';
		$suffix              = $should_prettify ? ' ' : '';
		$suffix              = $should_prettify && $indent_count > 0 ? "\n" : $suffix;
		$spacer              = $should_prettify ? ' ' : '';

		foreach ( $declarations_array as $property => $value ) {
			$filtered_declaration = static::filter_declaration( $property, $value, $spacer );
			if ( $filtered_declaration ) {
				$declarations_output .= "{$indent}{$filtered_declaration};$suffix";
			}
		}

		return rtrim( $declarations_output );
	}

	/**
	 * Sanitizes property names.
	 *
	 * @since 6.1.0
	 *
	 * @param string $property The CSS property.
	 * @return string The sanitized property name.
	 */
	protected function sanitize_property( $property ) {
		return sanitize_key( $property );
	}
}
nd . '-' . wp_json_encode( $args ) . '-' . $method );
		$cache = $this->get_cache( $key );

		if ( $cache ) {
			return $cache;
		}

		$this->run_server();

		$controller_instance = $this->find_controller_instance( $command );

		if ( ! $controller_instance ) {
			$this->set_cache( $key, [] );
			return [];
		}

		$extracted_command = $this->command_extract_args( $command, $args );
		$command = $extracted_command->command;
		$args = $extracted_command->args;

		$format = isset( $this->command_formats[ $command ] ) ? $this->command_formats[ $command ] : false;

		$command_processors = $controller_instance->get_processors( $command );

		$endpoint = $this->command_to_endpoint( $command, $format, $args );

		$this->run_processors( $command_processors, Processor\Before::class, [ $args ] );

		$response = $this->run_request( $endpoint, $args, $method );
		$result = $response->get_data();

		if ( $response->is_error() ) {
			$this->set_cache( $key, [] );
			return [];
		}

		$result = $this->run_processors( $command_processors, Processor\After::class, [ $args, $result ] );

		$this->set_cache( $key, $result );

		return $result;
	}

	public function is_internal() {
		return $this->is_internal;
	}
}