Prototype that shall replace get_metadata() more or less inside Bear

BearSetting.py

# TODO Don't think I need this, but maybe we switch to a simpler system instead
# TODO of grabbing function metadata. So idea is grab metadata but parse them
# TODO into these BearSetting's for easier use.
class BearSetting:
    @enforce_signature
    def __init__(self, name: str, typ: type, default=None):
        if default is not None and type(default) is not typ:
            raise ValueError("Default is not of given type.")

        self._name = name
        self._type = typ
        self._default = default

    @property
    def name(self):
        return self._name

    @property
    def type(self):
        return self._type

    @property
    def default(self):
        return self._default