class_docstr: Relative Position Bias Impl (Compatible with Tensorflow MaxViT models)
  Adapted from:
   https://github.com/google-research/maxvit/blob/2e06a7f1f70c76e64cd3dabe5cd1b8c1a23c9fb7/maxvit/models/attention_utils.py
class_docstr_tok: ["Relative","Position","Bias","Impl","(","Compatible","with","Tensorflow","MaxViT","models",")","Adapted","from",":","https",":","\/\/github.com\/google-research\/maxvit\/blob\/2e06a7f1f70c76e64cd3dabe5cd1b8c1a23c9fb7\/maxvit\/models\/attention_utils.py"]
code: def forward(
      self, attn, shared_rel_pos: Optional[torch.Tensor] = None
  ):
      return attn + self.get_bias()
  
imports: import math
  import os
  from typing import Optional, Tuple
  import torch
  import torch.nn
  import torch.nn.functional
  from .interpolate import RegularGridInterpolator
  from .mlp import Mlp
  from .weight_init import trunc_normal_
label_desc: Use image node_id 4 for calling the RelPosBiasTf obj's underlying member method code with example usage: obj.forward(attn, shared_rel_pos) and returns: unknown