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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 close(self):
 """ Close the current |stream|. """


        if self.stream is None:
            return

        try:
            self.stream.isatty()

            if self.stream.name in ["<stdin>", "<stdout>", "<stderr>"]:
                return
        except AttributeError:
            pass
        except ValueError:
            # raised when executing an operation to a closed stream
            pass

        try:
            from _pytest.compat import CaptureIO
            from _pytest.capture import EncodedFile

            if isinstance(self.stream, (CaptureIO, EncodedFile)):
                # avoid closing streams for pytest
                return
        except ImportError:
            pass

        try:
            from ipykernel.iostream import OutStream

            if isinstance(self.stream, OutStream):
                # avoid closing streams for Jupyter Notebook
                return
        except ImportError:
            pass

        try:
            self.stream.close()
        except AttributeError:
            self._logger.logger.warn(
                "the stream has no close method implementation: type={}".format(type(self.stream))
            )
        finally:
            self._stream = None