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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 minimumCanEqual(self):
 """Flag indicating if maximum value is inclusive or exclusive."""

        if self.minimum is None:
            raise SchemaError("minimumCanEqual requires presence of minimum")
        value = self._schema.get("minimumCanEqual", True)
        if value is not True and value is not False:
            raise SchemaError(
                "minimumCanEqual value {0!r} is not a boolean".format(
                    value))
        return value