ImportProcessTemplate.
        [Preview API] Imports a process from zip file.
        :param object upload_stream: Stream to upload
        :param bool ignore_warnings: Default value is false
        :rtype: :class:`<ProcessImportResult> <azure.devops.v5_0.work_item_tracking_process_template.models.ProcessImportResult>`

def import_process_template(self, upload_stream, ignore_warnings=None, **kwargs):
        """ImportProcessTemplate.
        [Preview API] Imports a process from zip file.
        :param object upload_stream: Stream to upload
        :param bool ignore_warnings: Default value is false
        :rtype: :class:`<ProcessImportResult> <azure.devops.v5_0.work_item_tracking_process_template.models.ProcessImportResult>`
        """
        route_values = {}
        route_values['action'] = 'Import'
        query_parameters = {}
        if ignore_warnings is not None:
            query_parameters['ignoreWarnings'] = self._serialize.query('ignore_warnings', ignore_warnings, 'bool')
        if "callback" in kwargs:
            callback = kwargs["callback"]
        else:
            callback = None
        content = self._client.stream_upload(upload_stream, callback=callback)
        response = self._send(http_method='POST',
                              location_id='29e1f38d-9e9c-4358-86a5-cdf9896a5759',
                              version='5.0-preview.1',
                              route_values=route_values,
                              query_parameters=query_parameters,
                              content=content,
                              media_type='application/octet-stream')
        return self._deserialize('ProcessImportResult', response)