key, value) are fused. For cross-attention modules, key and value projection matrices are fused. This API is 🧪 experimental.  unfuse_qkv_projections  < source > ( unet: bool = True vae: bool = True  )   Parameters   unet (bool, defaults to True) — To apply fusion on the UNet.   vae (bool, defaults to True) — To apply fusion on the VAE.    Disable QKV projection fusion if enabled. This API is 🧪 experimental.