public static function get_tokens( $args ) {
		$args = wp_parse_args(
			$args,
			array(
				'token_id'   => '',
				'user_id'    => '',
				'gateway_id' => '',
				'type'       => '',
			)
		);

		$data_store    = WC_Data_Store::load( 'payment-token' );
		$token_results = $data_store->get_tokens( $args );
		$tokens        = array();

		if ( ! empty( $token_results ) ) {
			foreach ( $token_results as $token_result ) {
				$_token = self::get( $token_result->token_id, $token_result );
				if ( ! empty( $_token ) ) {
					$tokens[ $token_result->token_id ] = $_token;
				}
			}
		}

		return $tokens;
	}