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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 validate(self):
 """Validate the configuration against its contract. :raises DbtProjectError: If the configuration fails validation. """

        try:
            Configuration(**self.serialize())
        except ValidationException as e:
            raise DbtProjectError(str(e))

        if getattr(self.args, 'version_check', False):
            self.validate_version()