 the text encoder.  CrossFrameAttnProcessor  class diffusers.pipelines.text_to_video_synthesis.pipeline_text_to_video_zero.CrossFrameAttnProcessor  < source > ( batch_size = 2  )    Cross frame attention processor. Each frame attends the first frame.  CustomDiffusionAttnProcessor  class diffusers.models.attention_processor.CustomDiffusionAttnProcessor  < source > ( train_kv: bool = True train_q_out: bool = True hidden_size: Optional = None cros