[Relay][Ops] Register all operators' attributes in Python #3175
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When constructing Relay operator calls in Python, unless the attributes node for that operator is specifically registered, the attributes nodes are treated as
tvm.NodeBase
and thus it is impossible to list and access the keys for those attributes. That makes it incredibly difficult to programmatically manipulate operator calls in Python.It may also be wise to update the operator registration instructions to also encourage registering the attributes node for that operator, as in here.