(The default value is true.) If set to false, body's data field will not
be filled in after the body is fully sent/received, and the chunks that make
up body may be discarded when they are no longer needed.
If you set the flag to false on the classMessage request_body of a
client-side message, it will block the accumulation of chunks into
body's data field, but it will not normally cause the chunks to
be discarded after being written like in the server-side
classMessage response_body case, because the request body needs to
be kept around in case the request needs to be sent a second time
due to redirection or authentication.
Sets or clears the accumulate flag on body.
(The default value is true.) If set to false, body's data field will not be filled in after the body is fully sent/received, and the chunks that make up body may be discarded when they are no longer needed.
If you set the flag to false on the classMessage request_body of a client-side message, it will block the accumulation of chunks into body's data field, but it will not normally cause the chunks to be discarded after being written like in the server-side classMessage response_body case, because the request body needs to be kept around in case the request needs to be sent a second time due to redirection or authentication.