docstr: Computes the first derivative of the score function
docstr_tok: ["Computes","the","first","derivative","of","the","score","function"]
code: def dscore(
      self, observed_sum: float, expectations: np.array, q: float
  ):
      """
      Computes the first derivative of the score function
      """
      raise NotImplementedError
  
imports: import numpy
label_desc: Use image node_id 3 for calling the ScoringFunction obj's underlying member method code with example usage: obj.dscore(observed_sum, expectations, q) without return types