vant for
CrossAttnDownBlock2D, CrossAttnUpBlock2D,
UNetMidBlock2DCrossAttn.   encoder_hid_dim (int, optional, defaults to None) —
If encoder_hid_dim_type is defined, encoder_hidden_states will be projected from encoder_hid_dim
dimension to cross_attention_dim.   encoder_hid_dim_type (str, optional, defaults to None) —
If given, the encoder_hidden_states and potentially other embeddings are down-projected to text
embeddings of dimension cross_at