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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_grp_name(self, code):
 """Return group and name for an evidence code."""

        nt_code = self.code2nt.get(code.strip(), None)
        if nt_code is not None:
            return nt_code.group, nt_code.name
        return "", ""