func (s *AuthorizationsService) Delete(ctx context.Context, id int64) (*Response, error) {
	u := fmt.Sprintf("authorizations/%d", id)
	req, err := s.client.NewRequest("DELETE", u, nil)
	if err != nil {
		return nil, err
	}
	return s.client.Do(ctx, req, nil)
}
Delete a single authorization.

GitHub API docs: https://developer.github.com/v3/oauth_authorizations/#delete-an-authorization
package github
import (
	"context"
	"fmt"
)
type Scope string
const (
	ScopeNone           Scope = "(no scope)"  
	ScopeUser           Scope = "user"
	ScopeUserEmail      Scope = "user:email"
	ScopeUserFollow     Scope = "user:follow"
	ScopePublicRepo     Scope = "public_repo"
	ScopeRepo           Scope = "repo"
	ScopeRepoDeployment Scope = "repo_deployment"
	ScopeRepoStatus     Scope = "repo:status"
	ScopeDeleteRepo     Scope = "delete_repo"
	ScopeNotifications  Scope = "notifications"
	ScopeGist           Scope = "gist"
	ScopeReadRepoHook   Scope = "read:repo_hook"
	ScopeWriteRepoHook  Scope = "write:repo_hook"
	ScopeAdminRepoHook  Scope = "admin:repo_hook"
	ScopeAdminOrgHook   Scope = "admin:org_hook"
	ScopeReadOrg        Scope = "read:org"
	ScopeWriteOrg       Scope = "write:org"
	ScopeAdminOrg       Scope = "admin:org"
	ScopeReadPublicKey  Scope = "read:public_key"
	ScopeWritePublicKey Scope = "write:public_key"
	ScopeAdminPublicKey Scope = "admin:public_key"
	ScopeReadGPGKey     Scope = "read:gpg_key"
	ScopeWriteGPGKey    Scope = "write:gpg_key"
	ScopeAdminGPGKey    Scope = "admin:gpg_key"
)
type AuthorizationsService service
type Authorization struct {
	ID             *int64            `json:"id,omitempty"`
	URL            *string           `json:"url,omitempty"`
	Scopes         []Scope           `json:"scopes,omitempty"`
	Token          *string           `json:"token,omitempty"`
	TokenLastEight *string           `json:"token_last_eight,omitempty"`
	HashedToken    *string           `json:"hashed_token,omitempty"`
	App            *AuthorizationApp `json:"app,omitempty"`
	Note           *string           `json:"note,omitempty"`
	NoteURL        *string           `json:"note_url,omitempty"`
	UpdatedAt      *Timestamp        `json:"updated_at,omitempty"`
	CreatedAt      *Timestamp        `json:"created_at,omitempty"`
	Fingerprint    *string           `json:"fingerprint,omitempty"`
	User *User `json:"user,omitempty"`
}
func (a Authorization) String() string {
	return Stringify(a)
}
type AuthorizationApp struct {
	URL      *string `json:"url,omitempty"`
	Name     *string `json:"name,omitempty"`
	ClientID *string `json:"client_id,omitempty"`
}
func (a AuthorizationApp) String() string {
	return Stringify(a)
}
type Grant struct {
	ID        *int64            `json:"id,omitempty"`
	URL       *string           `json:"url,omitempty"`
	App       *AuthorizationApp `json:"app,omitempty"`
	CreatedAt *Timestamp        `json:"created_at,omitempty"`
	UpdatedAt *Timestamp        `json:"updated_at,omitempty"`
	Scopes    []string          `json:"scopes,omitempty"`
}
func (g Grant) String() string {
	return Stringify(g)
}
type AuthorizationRequest struct {
	Scopes       []Scope `json:"scopes,omitempty"`
	Note         *string `json:"note,omitempty"`
	NoteURL      *string `json:"note_url,omitempty"`
	ClientID     *string `json:"client_id,omitempty"`
	ClientSecret *string `json:"client_secret,omitempty"`
	Fingerprint  *string `json:"fingerprint,omitempty"`
}
func (a AuthorizationRequest) String() string {
	return Stringify(a)
}
type AuthorizationUpdateRequest struct {
	Scopes       []string `json:"scopes,omitempty"`
	AddScopes    []string `json:"add_scopes,omitempty"`
	RemoveScopes []string `json:"remove_scopes,omitempty"`
	Note         *string  `json:"note,omitempty"`
	NoteURL      *string  `json:"note_url,omitempty"`
	Fingerprint  *string  `json:"fingerprint,omitempty"`
}
func (a AuthorizationUpdateRequest) String() string {
	return Stringify(a)
}
func (s *AuthorizationsService) List(ctx context.Context, opt *ListOptions) ([]*Authorization, *Response, error) {
	u := "authorizations"
	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
	}
	var auths []*Authorization
	resp, err := s.client.Do(ctx, req, &auths)
	if err != nil {
		return nil, resp, err
	}
	return auths, resp, nil
}
func (s *AuthorizationsService) Get(ctx context.Context, id int64) (*Authorization, *Response, error) {
	u := fmt.Sprintf("authorizations/%d", id)
	req, err := s.client.NewRequest("GET", u, nil)
	if err != nil {
		return nil, nil, err
	}
	a := new(Authorization)
	resp, err := s.client.Do(ctx, req, a)
	if err != nil {
		return nil, resp, err
	}
	return a, resp, nil
}
func (s *AuthorizationsService) Create(ctx context.Context, auth *AuthorizationRequest) (*Authorization, *Response, error) {
	u := "authorizations"
	req, err := s.client.NewRequest("POST", u, auth)
	if err != nil {
		return nil, nil, err
	}
	a := new(Authorization)
	resp, err := s.client.Do(ctx, req, a)
	if err != nil {
		return nil, resp, err
	}
	return a, resp, nil
}
func (s *AuthorizationsService) GetOrCreateForApp(ctx context.Context, clientID string, auth *AuthorizationRequest) (*Authorization, *Response, error) {
	var u string
	if auth.Fingerprint == nil || *auth.Fingerprint == "" {
		u = fmt.Sprintf("authorizations/clients/%v", clientID)
	} else {
		u = fmt.Sprintf("authorizations/clients/%v/%v", clientID, *auth.Fingerprint)
	}
	req, err := s.client.NewRequest("PUT", u, auth)
	if err != nil {
		return nil, nil, err
	}
	a := new(Authorization)
	resp, err := s.client.Do(ctx, req, a)
	if err != nil {
		return nil, resp, err
	}
	return a, resp, nil
}
func (s *AuthorizationsService) Edit(ctx context.Context, id int64, auth *AuthorizationUpdateRequest) (*Authorization, *Response, error) {
	u := fmt.Sprintf("authorizations/%d", id)
	req, err := s.client.NewRequest("PATCH", u, auth)
	if err != nil {
		return nil, nil, err
	}
	a := new(Authorization)
	resp, err := s.client.Do(ctx, req, a)
	if err != nil {
		return nil, resp, err
	}
	return a, resp, nil
}