@property
    def pair(self):
        if self.set_val is not None:
            return self.env_name, self.set_val
        elif self.default_val is not None:
            return self.env_name, os.environ.get(self.env_name, self.default_val)
        else:
            return self.env_name, os.environ[self.env_name]
Get the name and value for this environment variable
dataset/ETHPy150Open realestate-com-au/harpoon/harpoon/option_spec/image_objs.py/Environment.pair