Get the list of resource types supported by the HydroShare server

        :return: A set of strings representing the HydroShare resource types

        :raises: HydroShareHTTPException to signal an HTTP error

def getResourceTypes(self):
        """ Get the list of resource types supported by the HydroShare server

        :return: A set of strings representing the HydroShare resource types

        :raises: HydroShareHTTPException to signal an HTTP error
        """
        url = "{url_base}/resource/types".format(url_base=self.url_base)

        r = self._request('GET', url)
        if r.status_code != 200:
            raise HydroShareHTTPException((url, 'GET', r.status_code))

        resource_types = r.json()
        return set([t['resource_type'] for t in resource_types])