def __init__(self, **kwargs):
    self.search_space = {}
    self.lambda_ = (lambda : 0)
    for (key, val) in kwargs.items():
        self.search_space[key] = val
def __init__(self, **kwargs):
    self.search_space = {}
    self.lambda_ = (lambda : 0)
    for (key, val) in kwargs.items():
        self.search_space[key] = val