def METHOD_NAME(self, option_type: RequestOptionType, stream_slice: StreamSlice):
    params = {}
    if stream_slice:
        for parent_config in self.parent_stream_configs:
            if parent_config.request_option and parent_config.request_option.inject_into == option_type:
                key = parent_config.partition_field.eval(self.config)
                value = stream_slice.get(key)
                if value:
                    params.update({parent_config.request_option.field_name: value})
    return params