onnx_shapes#
The onnx_shapes library runs shape inference over ONNX graphs. It
consumes the symbolic value descriptors defined in onnx_core
(onnx_light::core::symbolic::SymDim,
onnx_light::core::symbolic::SymShape and
onnx_light::core::symbolic::SymTensor), which together
describe a tensor whose shape may be fully known, fully symbolic, or
any mix in between. See sym_tensor.h for those
types.