code: def process_request_bytes(self, request):
      if self._grpc_channel:
          return self.grpc_query(request)
      else:
          # No grpc channel, get or initialize an embedded runtime
          return self.embedded_runtime.process_request_bytes(request)
  
imports: import pandas
  import psutil
  import pyarrow
  from typing import Union
  from .connection import SqlConnection
  from .dataset import SqlDataset, DataFrameDataset
  from .datasource import PandasDatasource, DfiDatasource
  from .evaluation import get_mark_group_for_scope
  from .transformer import import_pyarrow_interchange, to_arrow_table
  from .local_tz import get_local_tz
  from typing import TypedDict, List, Literal, Any
label_desc: Use image node_id 7 for calling the VegaFusionRuntime obj's underlying member method code with example usage: obj.process_request_bytes(request) and returns: self, self