code: def _get_weights(self, dimension: int) -> np.ndarray:
      if self._weights is None:  # caching for speed
          self._weights = np.linspace(0, self.beta, dimension)
      return self._weights
  
imports: from typing import List, Callable, Optional
  from math import exp, sqrt
  import numpy
label_desc: Use image node_id 2 for calling the Asymmetry obj's underlying member method code with example usage: obj._get_weights(dimension) and returns: self