code: def build_request_header(self, correlation_id, client_id):
      if self.FLEXIBLE_VERSION:
          return RequestHeaderV2(
              self, correlation_id=correlation_id, client_id=client_id
          )
      return RequestHeader(
          self, correlation_id=correlation_id, client_id=client_id
      )
  
imports: from __future__ import absolute_import
  import abc
  from kafka.protocol.struct import Struct
  from kafka.protocol.types import Int16, Int32, String, Schema, Array, TaggedFields
label_desc: Use image node_id 7 for calling the Request obj's underlying member method code with example usage: obj.build_request_header(correlation_id, client_id) and returns: RequestHeader, RequestHeaderV2