Support dispensable inputs for eager final state codegen #39743
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zyfncg
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Feb 23, 2022
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Describe
Operator developers may mark an input tensor as "optional", where Tensor-typed input will be generated as "paddle::optional" and Vector-typed input will be generated as is.
At runtime, if any "NULL" input were detected at Python-C level, we will either pass through an uninitialized "paddle::optional" object or an empty vector, depending on the input type.