def __init__(self, concept: ASTNestedName, params: List[ASTTemplateIntroductionParameter]) -> None:
    assert (len(params) > 0)
    self.concept = concept
    self.params = params
def __init__(self, concept: ASTNestedName, params: List[ASTTemplateIntroductionParameter]) -> None:
    assert (len(params) > 0)
    self.concept = concept
    self.params = params