Automattic / jetpack

		$options = self::get_module_available_options();

		// If option is invalid, don't go any further.

		if ( ! in_array( $option, array_keys( $options ) ) ) {

			return new WP_Error( 'invalid_param', esc_html(	sprintf( __( 'The option %s is invalid for this module.', 'jetpack' ), $option ) ), array( 'status' => 404 ) );

		}

		// Used if response is successful. The message can be overwritten and additional data can be added here.

		$response = array(

		$plugin = stripslashes( $data['plugin'] );

		if ( ! in_array( $plugin, array_keys( $plugins ) ) ) {

			return new WP_Error( 'plugin_not_found', esc_html( sprintf( __( 'Plugin %s is not installed.', 'jetpack' ), $plugin ) ), array( 'status' => 404 ) );

		}

		$plugin_data = $plugins[ $plugin ];