def OpenMessageDialog(self, Username, Text=u''):
        self.OpenDialog('IM', Username, tounicode(Text))
Return a "self-claim" document URI dict for the given claimant.
dataset/ETHPy150Open Skype4Py/Skype4Py/Skype4Py/client.py/Client.OpenMessageDialog--crossover with--dataset/ETHPy150Open hypothesis/h/h/api/parse_document_claims.py/document_uri_self_claim