Update app.py

app.py

@@ -78,6 +78,8 @@ from ltx_pipelines.utils.media_io import decode_audio_from_file, encode_video
 from ltx_core.loader.primitives import LoraPathStrengthAndSDOps
 from ltx_core.loader.sd_ops import LTXV_LORA_COMFY_RENAMING_MAP
 
+from ltx_core.model.transformer import attention as _attn_mod
+
 print(f"[ATTN] Before patch: memory_efficient_attention={_attn_mod.memory_efficient_attention}")
 try:
     from xformers.ops import memory_efficient_attention as _mea