torch.fx.experimental.symbolic_shapes.is_symbol_binding_fx_node#
- torch.fx.experimental.symbolic_shapes.is_symbol_binding_fx_node(node)[source]#
Check if a given FX node is a symbol binding node.
A symbol binding node is one that has a SymInt value in its meta that contains a sympy Symbol expression, and is either a placeholder node or contains unbacked symbols.
- Parameters:
node (torch.fx.Node) – The FX node to check
- Returns:
The sympy Symbol if the node is a symbol binding node, None otherwise
- Return type:
Optional[sympy.Symbol]
