content: from .full_attn import *
  from .serialized_attn import *
  from .windowed_attn import *
  from .modules import *
  import os
  import logging
  from typing import Literal
  from trellis.backend_config import (
      get_attention_backend,
      get_debug_mode,
  )
  import logging
  
  logger = logging.getLogger(__name__)
  
  #ATTN = get_attention_backend()
  ATTN = get_attention_backend()
  DEBUG = get_debug_mode()
  
  def __from_env():
      """Read current backend configuration"""
      #global ATTN
      global ATTN
      global DEBUG
      
      # Get current settings from central config
      #ATTN = 
      ATTN = get_attention_backend()
      DEBUG = get_debug_mode()
      
      print(f"[ATTENTION] sparse backend: {ATTN}")