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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 clear_doc(self, docname):
 """Remove the data associated with this instance of the domain."""

        for fullname, (fn, x) in self.data['objects'].items():
            if fn == docname:
                del self.data['objects'][fullname]
        for modname, (fn, x, x, x) in self.data['modules'].items():
            if fn == docname:
                del self.data['modules'][modname]
        for labelname, (fn, x, x) in self.data['labels'].items():
            if fn == docname:
                del self.data['labels'][labelname]
        for anonlabelname, (fn, x) in self.data['anonlabels'].items():
            if fn == docname:
                del self.data['anonlabels'][anonlabelname]