def assign_extension_to_users(self, body):
        """AssignExtensionToUsers.
        [Preview API] Assigns the access to the given extension for a given list of users
        :param :class:`<ExtensionAssignment> <azure.devops.v5_0.licensing.models.ExtensionAssignment>` body: The extension assignment details.
        :rtype: [ExtensionOperationResult]
        """
        content = self._serialize.body(body, 'ExtensionAssignment')
        response = self._send(http_method='PUT',
                              location_id='8cec75ea-044f-4245-ab0d-a82dafcc85ea',
                              version='5.0-preview.1',
                              content=content)
        return self._deserialize('[ExtensionOperationResult]', self._unwrap_collection(response))