IPAdapterAttnProcessor  
Attention processor for Multiple IP-Adapters.  
Args:
hidden_size (`int`):
The hidden size of the attention layer.
cross_attention_dim (`int`):
The number of channels in the `encoder_hidden_states`.
num_tokens (`int`, `Tuple[int]` or `List[int]`, defaults to `(4,)`):
The context length of the image features.
scale (`float` or List[`float`], defaults to 1.0):
the weight scale of image prompt.  
IPAdapterAttnProcessor  
Attention processor for Multiple IP-Adapters.  
Args: