code: def __delitem__(self, name: str) -> None:
      del self._mapping[name]
  
imports: from __future__ import annotations
  import typing
  import jax
  import jax.tree_util
  from flax import traverse_util
  from flax.experimental.nnx.nnx import filterlib, reprlib
  from flax.experimental.nnx.nnx.variables import Variable
label_desc: Use image node_id 6 for calling the StateVariablesMapping obj's underlying member method code with example usage: obj.__delitem__(name) without return types