@NotNull public ClarifaiClient buildSync(){
  return new ClarifaiClientImpl(this);
}

@ NotNull public ClarifaiClient buildSync ( ) { return new ClarifaiClientImpl ( this ) ; }
builds the api client , blocking until an access token has been retrieved . < p > this involves a network call , but the token is refreshed on another thread while this one waits , so android users don ' t have to worry about networkonmainthreadexception , for example .
