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0b42b074 - [Onnx] support half-precision and fix bugs for onnx pipelines (#932)

[Onnx] support half-precision and fix bugs for onnx pipelines (#932) * [Onnx] support half-precision and fix bugs for onnx pipelines * Update convert_stable_diffusion_checkpoint_to_onnx.py * style * fix has_nsfw_concept * Update convert_stable_diffusion_checkpoint_to_onnx.py * fix style