set-network-process-option

set-network-process-option is a built-in function in `C source code'.

(set-network-process-option PROCESS OPTION VALUE &optional NO-ERROR)

For network process PROCESS set option OPTION to value VALUE.
See `make-network-process' for a list of options and values.
If optional fourth arg NO-ERROR is non-nil, don't signal an error if
OPTION is not a supported option, return nil instead; otherwise return t.