Enable sending pipelined requests to the same host if the driver supports it.
+> ***NOTE:***
+> This method has been deprecated in 2.3.0, please use http\Client::configure() instead.
+
## Params:
* Optional bool $enable = true
## Returns:
* http\Client, self.
+
+## Throws:
+
+* http\Exception\InvalidArgumentException
+* http\Exception\UnexpectedValueException