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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 rt_update_module(self, xmldict, module):
 """Updates the members, executables and types in the specified module to have the latest docstring information from the xmldict. """

        #This keeps track of how many character were added/removed by
        #updating the docstrings in xmldict.
        delta = 0
        for kdecor in xmldict:
            if "." in kdecor:
                modname, memname = kdecor.split(".")
            else:
                modname, memname = module.name, None

            if module.name == modname:
                #This tag is relevant to the specified module. Continue
                xlist, docstart, docend = xmldict[kdecor]

                #We only need to check the members, types and executables
                #For executables and types, we need to update the docstart and
                #docend attributes since their docstrings must come as a single
                #block immediately preceding the signature, so that our values
                #from the updater will be correct.
                if memname in module.types:
                    member = module.types[memname]
                    docs = self.to_doc(xlist, memname)
                    member.docstring = docs
                    delta += self._rt_update_docindices(member, docstart, docend)
                elif memname in module.executables:
                    member = module.executables[memname]
                    docs = self.to_doc(xlist, memname)
                    self.process_execdocs(docs, member, kdecor, False)
                    delta += self._rt_update_docindices(member, docstart, docend)
                else:
                    #Since it didn't point to anything else, it must be for the
                    #members of the module.
                    docs = self.to_doc(xlist, modname)
                    self.process_memberdocs(docs, module, False)               
                
        return delta