code: def log_power(x, a, b, c):
      """ "logistic power
  
      Parameters
      ----------
      x : int
      a : float
      b : float
      c : float
  
      Returns
      -------
      float
          a/(1.+(x/np.exp(b))**c)
      """
      return a / (1.0 + (x / np.exp(b)) ** c)
  
file_path: nni/nni/algorithms/hpo/curvefitting_assessor/curvefunctions.py
imports: import numpy
label_desc: Use image node_id 6 for calling a global function with example usage: log_power(x, a, b, c) and returns: unknown