def METHOD_NAME(self, yaml_callsites: Any) -> Dict[str, List[str]]:
    cs_loaded: Dict[str, List[str]] = {}
    for callsite in yaml_callsites:
        if callsite['Dst'] not in cs_loaded.keys():
            callsite_list = []
        else:
            callsite_list = cs_loaded[callsite['Dst']]
        callsite_src = callsite['Src'].split(',')[0].replace(
            ':', '#%s:' % self.function_name)
        callsite_list.append(callsite_src)
        cs_loaded.update({callsite['Dst']: callsite_list})
    return cs_loaded