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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 output_file(self, _container):
 """Find and writes the output path of a chroot container."""

        p = local.path(_container)
        if p.exists():
            if not ui.ask("Path '{0}' already exists."
                          " Overwrite?".format(p)):
                sys.exit(0)
        CFG["container"]["output"] = str(p)