pub fn force_refresh(
  ,
) -> Result(
  option.Option(types.Credentials),
  types.CredentialError,
)

pub fn force_refresh_with_options(
  options: types.RefreshOptions,
) -> Result(
  option.Option(types.Credentials),
  types.CredentialError,
)

pub fn get_credentials(
  ,
) -> Result(
  option.Option(types.Credentials),
  types.CredentialError,
)

pub fn has_credentials() -> Bool

pub fn require_credentials(
  ,
) -> Result(types.Credentials, types.CredentialError)

pub fn start() -> Result(Nil, types.CredentialError)

pub fn stop() -> Nil