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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def get_line_value(self, context_type):
 """ Get the values defined on this line. :param context_type: "ENV" or "LABEL" :return: values of given type defined on this line """

        if context_type.upper() == "ENV":
            return self.line_envs
        elif context_type.upper() == "LABEL":
            return self.line_labels