code: public TransportApiResult<Line> getLine(String lineId)
      {
      	if (Extensions.isNullOrWhiteSpace(lineId))
      	{
      		throw new IllegalArgumentException("LineId is required.");
      	}
      	
      	
      	return TransportApiClientCalls.getLine(tokenComponent, settings, lineId);
      }
docs: Gets a specific line.
  
  @param  lineId  			The id of the line you want to get.
  @return      			A line.