method
start
![Some documentation Importance_1](https://d2vfyqvduarcvs.cloudfront.net/images/importance_1.png?1349367920)
start()
public
Opens a TCP connection and HTTP session.
When this method is called with a block, it passes the Net::HTTP object to the block, and closes the TCP connection and HTTP session after the block has been executed.
When called with a block, it returns the return value of the block; otherwise, it returns self.