def __init__(self, iterations, acceptance_angle, energy, width=None):
    self.iterations = iterations
    self.acceptance_angle = acceptance_angle
    self.energy = energy
    self.width = width
def __init__(self, iterations, acceptance_angle, energy, width=None):
    self.iterations = iterations
    self.acceptance_angle = acceptance_angle
    self.energy = energy
    self.width = width