code: public function getState($state_code = null)
  	{
  		
  		if (!empty($state_code)) {
  			$res = Zipcode::where('state_code', $state_code)->orderByRaw(Database::random())->first();
  		} else {
  			$res = Zipcode::orderByRaw(Database::random())->first();
  		}
  		
  		$State = new Entities\State;
  		$State->code = $res->state_code;
  		$State->name = $res->state;
  		return $State;
  	}
docs: Return a state
  
  @param null $state_code
  @return \joshmoody\Mock\Entities\State