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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 utils(self):
 """Include the Utils module. .. Note:: Utils methods can be accessed using ``tcex.utils.<method>``. """

        if self._utils is None:
            from .tcex_utils import TcExUtils

            self._utils = TcExUtils(self)
        return self._utils