hidden_size (`int`, *optional*):
The size of hidden layer in the conditioning embedding layers.
num_layers (`int`, *optional*, defaults to 1):
The number of layers of Transformer blocks to use.
mlp_ratio (`float`, *optional*, defaults to 4.0):
The ratio of the hidden layer size to the input size.
learn_sigma (`bool`, *optional*, defaults to `True`):
Whether to predict variance.
cross_attention_dim_t5 (`int`, *optional*):
The number dimensions in t5 text embedding.
pooled_projection_dim (`int`, *optional*):