class_docstr: A helper class for handling relay functions from darknet model.
docstr: Returs a symbol for state
docstr_tok: ["Returs","a","symbol","for","state"]
code: def _new_rnn_state_var(self, state=None, name="rnn"):
      """Returs a symbol for state"""
      sym_name = name + f"{self._state_ctr[name]}_state"
      self._state_ctr[name] += 1
      return new_var(
          sym_name, shape=state.shape, dtype=str(state.dtype)
      )
  
imports: from enum import Enum
  import numpy
  import tvm
  from tvm.ir import IRModule
  from ..None import analysis
  from ..None import expr
  from ..None import function
  from .common import get_relay_op, new_var
label_desc: Use image node_id 12 for calling the GraphProto obj's underlying member method code with example usage: obj._new_rnn_state_var(state, name) and returns: new_var