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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 is_defined(self, obj, force_import=False):
 """Return True if object is defined in current namespace"""

        from spyder_kernels.utils.dochelpers import isdefined

        ns = self._get_current_namespace(with_magics=True)
        return isdefined(obj, force_import=force_import, namespace=ns)