def readFromUrl(self, url, username=None, password=None,<EOL>headers=None, verify=True, cert=None):
return self._readFromUrl(url,<EOL>{'<STR_LIT>': '<STR_LIT>', '<STR_LIT>':<EOL>'<STR_LIT>', '<STR_LIT:version>': self.version},<EOL>self.timeout,<EOL>username=username, password=password,<EOL>headers=headers, verify=verify, cert=cert)<EOL>
Method to get and parse a WPS capabilities document, returning an elementtree instance.

:param str url: WPS service base url, to which is appended the HTTP parameters: service, version, and request.
:param str username: optional user credentials
:param str password: optional user credentials