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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 get(self, remote, local=None, preserve_mode=True):
 """ Download a file from the current connection to the local filesystem. :param str remote: Remote file to download. May be absolute, or relative to the remote working directory. .. note:: Most SFTP servers set the remote working directory to the connecting user's home directory, and (unlike most shells) do *not* expand tildes (``~``). For example, instead of saying ``get("~/tmp/archive.tgz")``, say ``get("tmp/archive.tgz")``. :param local: Local path to store downloaded file in, or a file-like object. **If None or another 'falsey'/empty value is given** (the default), the remote file is downloaded to the current working directory (as seen by `os.getcwd`) using its remote filename. **If a string is given**, it should be a path to a local directory or file and is subject to similar behavior as that seen by common Unix utilities or OpenSSH's ``sftp`` or ``scp`` tools. For example, if the local path is a directory, the remote path's base filename will be added onto it (so ``get('foo/bar/file.txt', '/tmp/')`` would result in creation or overwriting of ``/tmp/file.txt``). .. note:: When dealing with nonexistent file paths, normal Python file handling concerns come into play - for example, a ``local`` path containing non-leaf directories which do not exist, will typically result in an `OSError`. **If a file-like object is given**, the contents of the remote file are simply written into it. :param bool preserve_mode: Whether to `os.chmod` the local file so it matches the remote file's mode (default: ``True``). :returns: A `.Result` object. .. versionadded:: 2.0 """

        # TODO: how does this API change if we want to implement
        # remote-to-remote file transfer? (Is that even realistic?)
        # TODO: handle v1's string interpolation bits, especially the default
        # one, or at least think about how that would work re: split between
        # single and multiple server targets.
        # TODO: callback support
        # TODO: how best to allow changing the behavior/semantics of
        # remote/local (e.g. users might want 'safer' behavior that complains
        # instead of overwriting existing files) - this likely ties into the
        # "how to handle recursive/rsync" and "how to handle scp" questions

        # Massage remote path
        if not remote:
            raise ValueError("Remote path must not be empty!")
        orig_remote = remote
        remote = posixpath.join(
            self.sftp.getcwd() or self.sftp.normalize("."), remote
        )

        # Massage local path:
        # - handle file-ness
        # - if path, fill with remote name if empty, & make absolute
        orig_local = local
        is_file_like = hasattr(local, "write") and callable(local.write)
        if not local:
            local = posixpath.basename(remote)
        if not is_file_like:
            local = os.path.abspath(local)

        # Run Paramiko-level .get() (side-effects only. womp.)
        # TODO: push some of the path handling into Paramiko; it should be
        # responsible for dealing with path cleaning etc.
        # TODO: probably preserve warning message from v1 when overwriting
        # existing files. Use logging for that obviously.
        #
        # If local appears to be a file-like object, use sftp.getfo, not get
        if is_file_like:
            self.sftp.getfo(remotepath=remote, fl=local)
        else:
            self.sftp.get(remotepath=remote, localpath=local)
            # Set mode to same as remote end
            # TODO: Push this down into SFTPClient sometime (requires backwards
            # incompat release.)
            if preserve_mode:
                remote_mode = self.sftp.stat(remote).st_mode
                mode = stat.S_IMODE(remote_mode)
                os.chmod(local, mode)
        # Return something useful
        return Result(
            orig_remote=orig_remote,
            remote=remote,
            orig_local=orig_local,
            local=local,
            connection=self.connection,
        )