def add_signer(self, scope, vk):
        self.data['signers'].append({'scope':scope, 'vk':vk})
Given a string, first determine if it looks like a reference
dataset/ETHPy150Open chalasr/Flask-P2P/venv/lib/python2.7/site-packages/wheel/signatures/keys.py/WheelKeys.add_signer--crossover with--dataset/ETHPy150Open kayhayen/Nuitka/nuitka/build/inline_copy/lib/scons-2.3.2/SCons/Util.py/get_environment_var