anchor.diff:      Url = make_url(user, {}),
       api_call_json_result(Cred, Url).
   
  --spec current_user_repos(credentials(), map()) -> string().
  -current_user_repos(Cred, Opts) ->
  -    Url = make_url(user_repos, {Opts}),
  -    api_call_json_result(Cred, Url).
  -
  --spec current_user_orgs(credentials()) -> string().
  -current_user_orgs(Cred) ->
  -    Url = make_url(user_orgs, {}),
  -    api_call_json_result(Cred, Url).
  -
  --spec repos(credentials(), string()) -> result().
  -repos(Cred, User) ->
  -    Url = make_url(repos, {User}),
  -    api_call_json_result(Cred, Url).
  -
  --spec org_repos(credentials(), string()) -> result().
  -org_repos(Cred, Org) ->
  -    Url = make_url(org_repos, {Org}),
  +-spec orgs(credentials()) -> string().
  +orgs(Cred) ->
  +    orgs(Cred, undefined).
  +
  +-spec orgs(credentials(), string()) -> string().
  +orgs(Cred, User) ->
  +    Url = make_url(orgs, {User}),
  +    api_call_json_result(Cred, Url).
  +
  +-spec repos(credentials(), map()) -> result().
  +repos(Cred, Opts) ->
  +    repos(Cred, undefined, Opts).
  +
  +-spec repos(credentials(), string(), map()) -> result().
  +repos(Cred, User, Opts) ->
  +    Url = make_url(repos, {User, Opts}),
  +    api_call_json_result(Cred, Url).
  +
  +-spec org_repos(credentials(), string(), map()) -> result().
  +org_repos(Cred, Org, Opts) ->
  +    Url = make_url(org_repos, {Org, Opts}),
       api_call_json_result(Cred, Url).
   
   -spec hooks(credentials(), repository()) -> result().
  
positive.code:     | {oauth, Token :: string()}.
  -type repository() :: string(). %% "username/reponame"
  -type result() :: ok | {ok, any()} | {error, term()}.
  
  -type endpoint() ::
      {pull_req, comments | files}
      | raw_contents.
  
  -define(GITHUB_API, "https://api.github.com").
  
  
negative.code:          pull_req_comments/3,
           %% Users
           user/1,
           repos/2,
           repos/3,
           orgs/1,
           orgs/2,
           org_repos/3,
           %% Hooks
           hooks/2,
           create_webhook/4,
  