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* Initial API change
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* Change all imports and api
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Don't pickle an empty dict in LayerNorm and BasicOperation layers
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* Misc fixes
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Output tensor dtype and device take precedence over weight tensor in linear functional API. Move some index calculation to fuser constructor. Avoid some unnecessary dereferences.
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* Review suggestions from @sudhakarsingh27 and @ksivaman

Fix spelling of "fusible". Avoid "input" name in internal APIs.
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Signed-off-by: Tim Moon <tmoon@nvidia.com>
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