Optional. Used to perform content matching. This allows matching based
on substrings and regular expressions, together with their negations.
Only the first 4 MB of an HTTP or HTTPS check's response (and the
first 1 MB of a TCP check's response) are examined for purposes of
content matching.
.. attribute:: content
String or regex content to match. Maximum 1024 bytes. An empty
content string indicates no content matching is to be
performed.
