Appends a new header with name name and value value to hdrs.
(If there is an existing header with name name, then this creates a second
one, which is only allowed for list-valued headers; see also
soup.message_headers.MessageHeaders.replace.)
The caller is expected to make sure that name and value are
syntactically correct.
Appends a new header with name name and value value to hdrs.
(If there is an existing header with name name, then this creates a second one, which is only allowed for list-valued headers; see also soup.message_headers.MessageHeaders.replace.)
The caller is expected to make sure that name and value are syntactically correct.