code: def _to_flax_state_dict(cls, pytree: "Pytree") -> dict[str, tp.Any]:
      from flax import serialization
  
      state_dict = {
          name: serialization.to_state_dict(getattr(pytree, name))
          for name, value in vars(pytree).items()
          if isinstance(
              value, (modulelib.Module, variables.Variable, Pytree)
          )
      }
      return state_dict
  
imports: import contextlib
  import dataclasses
  import importlib.util
  import inspect
  import typing
  from abc import ABCMeta
  from copy import copy
  from functools import partial
  from types import MappingProxyType
  import jax
  import numpy
  from flax.experimental.nnx.nnx import module
  from flax.experimental.nnx.nnx import reprlib, variables
  from flax.experimental.nnx.nnx.state import State
label_desc: Use image node_id 5 for calling the Pytree obj's underlying member method code with example usage: obj._to_flax_state_dict(cls, pytree) and returns: state_dict