The dropout probability to use.    Processor for implementing attention for the Custom Diffusion method.  CustomDiffusionAttnProcessor2_0  class diffusers.models.attention_processor.CustomDiffusionAttnProcessor2_0  < source > ( train_kv: bool = True train_q_out: bool = True hidden_size: Optional = None cross_attention_dim: Optional = None out_bias: bool = True dropout: float = 0.0  )   Parameters   train_kv (bool, defaults to True) —