class ChanMACDUnitTF():
    def __init__(self, start_time, start_klu, start_histset, pre_unittf, dir):
        self.start_time = start_time
        self.end_time = None
        self.start_klu = start_klu
        self.end_klu = None
        self.klu_list = []
        self.klu_list.append(start_klu)
        self.histset_list = []
        self.histset_list.append(start_histset)
        self.next = None
        self.pre = pre_unittf
        self.uinttf_dir = dir
    def set_next(self, next_unittf):
        self.next = next_unittf
    def add_histset(self, histset):
        self.histset_list.append(histset)
        histset.set_next(self)
    def add_klu(self, klu):
        self.klu_list.append(klu)
        klu.set_unittf(self)