public function update( $data ) {

		if ( empty( $data['id'] ) ) {
			// Translators: %s = name of the resource type (for example: "API Key").
			return new WP_Error( 'llms_rest_' . $this->id . '_missing_id', sprintf( __( 'No %s ID was supplied.', 'lifterlms' ), $this->get_i18n_name() ) );
		}

		$obj = $this->get( $data['id'] );
		if ( ! $obj || ! $obj->exists() ) {
			// Translators: %s = name of the resource type (for example: "API Key").
			return new WP_Error( 'llms_rest_' . $this->id . '_invalid_' . $this->id, sprintf( __( 'The requested %s could not be located.', 'lifterlms' ), $this->get_i18n_name() ) );
		}

		$data = $this->update_prepare( $data );
		if ( is_wp_error( $data ) ) {
			return $data;
		}

		return $this->save( $obj, $data );

	}