code: def linear_interpolation(left, right, alpha):
      """
      Linear interpolation between `left` and `right`.
  
      :param left: (float) left boundary
      :param right: (float) right boundary
      :param alpha: (float) coeff in [0, 1]
      :return: (float)
      """
  
      return left + alpha * (right - left)
  
label_desc: Use image node_id 1 for calling a global function with example usage: linear_interpolation(left, right, alpha) and returns: unknown