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.+(x/np.exp(b))**c)
docs: logistic power
  
      Parameters
      ----------
      x: int
      a: float
      b: float
      c: float
  
      Returns
      -------
      float
          a/(1.+(x/np.exp(b))**c)