code: def __repr__(self):
      s = "{name}(units={units}, learnable={learnable})"
      return s.format(
          name=self.__class__.__name__,
          units=self._units,
          learnable=self._learnable,
      )
  
imports: import math
  from collections import OrderedDict
  import torch
  import numpy
  from torch import nn
  from typing import Union
  from .utils import to_torch_dtype
label_desc: Use image node_id 3 for calling the SinusoidalPositionalEmbedding obj's underlying member method code with example usage: obj.__repr__() and returns: s