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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_interface(self, fullname):
 """Gets the interface corresponding to the specified full name. :arg fullname: a string with modulename.interface. """

        result = None
        [modname, iname] = fullname.split(".")
        module = self.get(modname)
        if module is not None:
            if iname in module.interfaces:
                result = module.interfaces[iname]
        return result