Modify Collection

[RaymondCarlaw]

I'm currently using a wrapper around collection that has the following structure.

`
class BaseCollection(Collection):

# _id is available within arango_orm collection base
_rev = String(load_only=True)
_key = String()

def __eq__(self, other):
    if issubclass(type(other), BaseCollection):
        if object.__hash__(self) == object.__hash__(other):
            return True
        else:
            return self._id == other._id and None not in [self._id, other._id]
    else:
        return False

def __lt__(self, other):
    if None == other._id and self._id != None:
        return False
    elif self._id == None and other._id != None:
        return True
    elif None not in [self._id, other._id]:
        return self._id < other._id
    else:
        return object.__hash__(self) < object.__hash__(other)

def __hash__(self):
    return hash(self._id) if self._id is not None else object.__hash__(self)

@property
def relations(self):
    if hasattr(self, '_relations'):
        return self._relations
    else:
        return {}

`
This has served me well in my application, and curious to see if anyone else would benefit from or could see pitfalls with introducing this code into the Collection class