def METHOD_NAME(method_callers):
    def signature_concat(method_caller):
        return f'{method_caller.get("className").replace("/", ".")}.{method_caller.get("methodName")}'
    method_caller_set = set()
    for method_caller in method_callers:
        if isinstance(method_caller, list):
            for node in method_caller:
                method_caller_set.add(signature_concat(node))
        elif isinstance(method_caller, dict):
            method_caller_set.add(signature_concat(method_caller))
    return method_caller_set