func (s *ChecksService) SetCheckSuitePreferences(ctx context.Context, owner, repo string, opt CheckSuitePreferenceOptions) (*CheckSuitePreferenceResults, *Response, error) {
	u := fmt.Sprintf("repos/%v/%v/check-suites/preferences", owner, repo)
	req, err := s.client.NewRequest("PATCH", u, opt)
	if err != nil {
		return nil, nil, err
	}
	req.Header.Set("Accept", mediaTypeCheckRunsPreview)
	var checkSuitePrefResults *CheckSuitePreferenceResults
	resp, err := s.client.Do(ctx, req, &checkSuitePrefResults)
	if err != nil {
		return nil, resp, err
	}
	return checkSuitePrefResults, resp, nil
}
SetCheckSuitePreferences changes the default automatic flow when creating check suites.

GitHub API docs: https://developer.github.com/v3/checks/suites/#set-preferences-for-check-suites-on-a-repository
package github
import (
	"context"
	"fmt"
)
type ChecksService service
type CheckRun struct {
	ID           *int64          `json:"id,omitempty"`
	NodeID       *string         `json:"node_id,omitempty"`
	HeadSHA      *string         `json:"head_sha,omitempty"`
	ExternalID   *string         `json:"external_id,omitempty"`
	URL          *string         `json:"url,omitempty"`
	HTMLURL      *string         `json:"html_url,omitempty"`
	Status       *string         `json:"status,omitempty"`
	Conclusion   *string         `json:"conclusion,omitempty"`
	StartedAt    *Timestamp      `json:"started_at,omitempty"`
	CompletedAt  *Timestamp      `json:"completed_at,omitempty"`
	Output       *CheckRunOutput `json:"output,omitempty"`
	Name         *string         `json:"name,omitempty"`
	CheckSuite   *CheckSuite     `json:"check_suite,omitempty"`
	App          *App            `json:"app,omitempty"`
	PullRequests []*PullRequest  `json:"pull_requests,omitempty"`
}
type CheckRunOutput struct {
	Title            *string               `json:"title,omitempty"`
	Summary          *string               `json:"summary,omitempty"`
	Text             *string               `json:"text,omitempty"`
	AnnotationsCount *int                  `json:"annotations_count,omitempty"`
	AnnotationsURL   *string               `json:"annotations_url,omitempty"`
	Annotations      []*CheckRunAnnotation `json:"annotations,omitempty"`
	Images           []*CheckRunImage      `json:"images,omitempty"`
}
type CheckRunAnnotation struct {
	Path            *string `json:"path,omitempty"`
	BlobHRef        *string `json:"blob_href,omitempty"`
	StartLine       *int    `json:"start_line,omitempty"`
	EndLine         *int    `json:"end_line,omitempty"`
	AnnotationLevel *string `json:"annotation_level,omitempty"`
	Message         *string `json:"message,omitempty"`
	Title           *string `json:"title,omitempty"`
	RawDetails      *string `json:"raw_details,omitempty"`
}
type CheckRunImage struct {
	Alt      *string `json:"alt,omitempty"`
	ImageURL *string `json:"image_url,omitempty"`
	Caption  *string `json:"caption,omitempty"`
}
type CheckSuite struct {
	ID           *int64         `json:"id,omitempty"`
	NodeID       *string        `json:"node_id,omitempty"`
	HeadBranch   *string        `json:"head_branch,omitempty"`
	HeadSHA      *string        `json:"head_sha,omitempty"`
	URL          *string        `json:"url,omitempty"`
	BeforeSHA    *string        `json:"before,omitempty"`
	AfterSHA     *string        `json:"after,omitempty"`
	Status       *string        `json:"status,omitempty"`
	Conclusion   *string        `json:"conclusion,omitempty"`
	App          *App           `json:"app,omitempty"`
	Repository   *Repository    `json:"repository,omitempty"`
	PullRequests []*PullRequest `json:"pull_requests,omitempty"`
}
func (c CheckRun) String() string {
	return Stringify(c)
}
func (c CheckSuite) String() string {
	return Stringify(c)
}
func (s *ChecksService) GetCheckRun(ctx context.Context, owner, repo string, checkRunID int64) (*CheckRun, *Response, error) {
	u := fmt.Sprintf("repos/%v/%v/check-runs/%v", owner, repo, checkRunID)
	req, err := s.client.NewRequest("GET", u, nil)
	if err != nil {
		return nil, nil, err
	}
	req.Header.Set("Accept", mediaTypeCheckRunsPreview)
	checkRun := new(CheckRun)
	resp, err := s.client.Do(ctx, req, checkRun)
	if err != nil {
		return nil, resp, err
	}
	return checkRun, resp, nil
}
func (s *ChecksService) GetCheckSuite(ctx context.Context, owner, repo string, checkSuiteID int64) (*CheckSuite, *Response, error) {
	u := fmt.Sprintf("repos/%v/%v/check-suites/%v", owner, repo, checkSuiteID)
	req, err := s.client.NewRequest("GET", u, nil)
	if err != nil {
		return nil, nil, err
	}
	req.Header.Set("Accept", mediaTypeCheckRunsPreview)
	checkSuite := new(CheckSuite)
	resp, err := s.client.Do(ctx, req, checkSuite)
	if err != nil {
		return nil, resp, err
	}
	return checkSuite, resp, nil
}
type CreateCheckRunOptions struct {
	Name        string          `json:"name"`                    
	HeadBranch  string          `json:"head_branch"`             
	HeadSHA     string          `json:"head_sha"`                
	DetailsURL  *string         `json:"details_url,omitempty"`   
	ExternalID  *string         `json:"external_id,omitempty"`   
	Status      *string         `json:"status,omitempty"`        
	Conclusion  *string         `json:"conclusion,omitempty"`    
	StartedAt   *Timestamp      `json:"started_at,omitempty"`    
	CompletedAt *Timestamp      `json:"completed_at,omitempty"`  
	Output      *CheckRunOutput `json:"output,omitempty"`        
}
func (s *ChecksService) CreateCheckRun(ctx context.Context, owner, repo string, opt CreateCheckRunOptions) (*CheckRun, *Response, error) {
	u := fmt.Sprintf("repos/%v/%v/check-runs", owner, repo)
	req, err := s.client.NewRequest("POST", u, opt)
	if err != nil {
		return nil, nil, err
	}
	req.Header.Set("Accept", mediaTypeCheckRunsPreview)
	checkRun := new(CheckRun)
	resp, err := s.client.Do(ctx, req, checkRun)
	if err != nil {
		return nil, resp, err
	}
	return checkRun, resp, nil
}
type UpdateCheckRunOptions struct {
	Name        string          `json:"name"`                    
	HeadBranch  *string         `json:"head_branch,omitempty"`   
	HeadSHA     *string         `json:"head_sha,omitempty"`      
	DetailsURL  *string         `json:"details_url,omitempty"`   
	ExternalID  *string         `json:"external_id,omitempty"`   
	Status      *string         `json:"status,omitempty"`        
	Conclusion  *string         `json:"conclusion,omitempty"`    
	CompletedAt *Timestamp      `json:"completed_at,omitempty"`  
	Output      *CheckRunOutput `json:"output,omitempty"`        
}
func (s *ChecksService) UpdateCheckRun(ctx context.Context, owner, repo string, checkRunID int64, opt UpdateCheckRunOptions) (*CheckRun, *Response, error) {
	u := fmt.Sprintf("repos/%v/%v/check-runs/%v", owner, repo, checkRunID)
	req, err := s.client.NewRequest("PATCH", u, opt)
	if err != nil {
		return nil, nil, err
	}
	req.Header.Set("Accept", mediaTypeCheckRunsPreview)
	checkRun := new(CheckRun)
	resp, err := s.client.Do(ctx, req, checkRun)
	if err != nil {
		return nil, resp, err
	}
	return checkRun, resp, nil
}
func (s *ChecksService) ListCheckRunAnnotations(ctx context.Context, owner, repo string, checkRunID int64, opt *ListOptions) ([]*CheckRunAnnotation, *Response, error) {
	u := fmt.Sprintf("repos/%v/%v/check-runs/%v/annotations", owner, repo, checkRunID)
	u, err := addOptions(u, opt)
	if err != nil {
		return nil, nil, err
	}
	req, err := s.client.NewRequest("GET", u, nil)
	if err != nil {
		return nil, nil, err
	}
	req.Header.Set("Accept", mediaTypeCheckRunsPreview)
	var checkRunAnnotations []*CheckRunAnnotation
	resp, err := s.client.Do(ctx, req, &checkRunAnnotations)
	if err != nil {
		return nil, resp, err
	}
	return checkRunAnnotations, resp, nil
}
type ListCheckRunsOptions struct {
	CheckName *string `url:"check_name,omitempty"`  
	Status    *string `url:"status,omitempty"`      
	Filter    *string `url:"filter,omitempty"`      
	ListOptions
}
type ListCheckRunsResults struct {
	Total     *int        `json:"total_count,omitempty"`
	CheckRuns []*CheckRun `json:"check_runs,omitempty"`
}
func (s *ChecksService) ListCheckRunsForRef(ctx context.Context, owner, repo, ref string, opt *ListCheckRunsOptions) (*ListCheckRunsResults, *Response, error) {
	u := fmt.Sprintf("repos/%v/%v/commits/%v/check-runs", owner, repo, ref)
	u, err := addOptions(u, opt)
	if err != nil {
		return nil, nil, err
	}
	req, err := s.client.NewRequest("GET", u, nil)
	if err != nil {
		return nil, nil, err
	}
	req.Header.Set("Accept", mediaTypeCheckRunsPreview)
	var checkRunResults *ListCheckRunsResults
	resp, err := s.client.Do(ctx, req, &checkRunResults)
	if err != nil {
		return nil, resp, err
	}
	return checkRunResults, resp, nil
}
func (s *ChecksService) ListCheckRunsCheckSuite(ctx context.Context, owner, repo string, checkSuiteID int64, opt *ListCheckRunsOptions) (*ListCheckRunsResults, *Response, error) {
	u := fmt.Sprintf("repos/%v/%v/check-suites/%v/check-runs", owner, repo, checkSuiteID)
	u, err := addOptions(u, opt)
	if err != nil {
		return nil, nil, err
	}
	req, err := s.client.NewRequest("GET", u, nil)
	if err != nil {
		return nil, nil, err
	}
	req.Header.Set("Accept", mediaTypeCheckRunsPreview)
	var checkRunResults *ListCheckRunsResults
	resp, err := s.client.Do(ctx, req, &checkRunResults)
	if err != nil {
		return nil, resp, err
	}
	return checkRunResults, resp, nil
}
type ListCheckSuiteOptions struct {
	CheckName *string `url:"check_name,omitempty"`  
	AppID     *int    `url:"app_id,omitempty"`      
	ListOptions
}
type ListCheckSuiteResults struct {
	Total       *int          `json:"total_count,omitempty"`
	CheckSuites []*CheckSuite `json:"check_suites,omitempty"`
}
func (s *ChecksService) ListCheckSuitesForRef(ctx context.Context, owner, repo, ref string, opt *ListCheckSuiteOptions) (*ListCheckSuiteResults, *Response, error) {
	u := fmt.Sprintf("repos/%v/%v/commits/%v/check-suites", owner, repo, ref)
	u, err := addOptions(u, opt)
	if err != nil {
		return nil, nil, err
	}
	req, err := s.client.NewRequest("GET", u, nil)
	if err != nil {
		return nil, nil, err
	}
	req.Header.Set("Accept", mediaTypeCheckRunsPreview)
	var checkSuiteResults *ListCheckSuiteResults
	resp, err := s.client.Do(ctx, req, &checkSuiteResults)
	if err != nil {
		return nil, resp, err
	}
	return checkSuiteResults, resp, nil
}
type AutoTriggerCheck struct {
	AppID   *int64 `json:"app_id,omitempty"`   
	Setting *bool  `json:"setting,omitempty"`  
}
type CheckSuitePreferenceOptions struct {
	PreferenceList *PreferenceList `json:"auto_trigger_checks,omitempty"`  
}
type CheckSuitePreferenceResults struct {
	Preferences *PreferenceList `json:"preferences,omitempty"`
	Repository  *Repository     `json:"repository,omitempty"`
}
type PreferenceList struct {
	AutoTriggerChecks []*AutoTriggerCheck `json:"auto_trigger_checks,omitempty"`  
}