docstr: Shape and implementations 
docstr_tok: ["Shape","and","implementations"]
code: def _create_parameters(
      self, weight_shape, weight_bound, bias_shape, bias_bound
  ):
      """Shape and implementations"""
      raise NotImplementedError(
          "Should be defined in framework implementations"
      )
  
file_path: einops/einops/layers/_einmix.py
imports: from typing import Any, List, Optional, Dict
  from einops import EinopsError
  from einops.parsing import ParsedExpression
  import warnings
  import string
  from ..einops import _product
label_desc: Use image node_id 4 for calling the _EinmixMixin obj's underlying member method code with example usage: obj._create_parameters(weight_shape, weight_bound, bias_shape, bias_bound) without return types