code: def merge(state: "State", /, *states: "State") -> "State":
      states = (state, *states)
  
      if len(states) == 1:
          return states[0]
  
      new_state: FlatState = {}
  
      for state in states:
          new_state.update(state.flat_state())
  
      return State.from_flat_path(new_state)
  
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 19 for calling the State obj's underlying member method code with example usage: obj.merge() and returns: State, states