message: Convert PassContext to a regular class
  Summary: Pull Request resolved:
diff: import dataclasses as dc
  import logging
  -from typing import Callable, List, Any, Sequence, Type, Set, Optional, Tuple
  +from typing import Callable, List, Any, Sequence, Type, Set, Optional, Tuple, NamedTuple
  import fx2trt_oss.tracer.acc_tracer.acc_tracer as acc_tracer
  @@ -69,13 +69,11 @@ LOWER_SPLIT_POST_OBSERVER: Observer[
  # ----------------------------------------------------------------------
  -@dc.dataclass(frozen=True)
  -class PassContext:
  +class PassContext(NamedTuple):
  input: Input
  lower_setting: "LowerSetting"
  module_name: str = ""
  -
  # Function signature for a graph module pass
  PassFunc = Callable[[nn.Module, PassContext], Tuple[nn.Module, PassContext]]
  