code: def BasicTransformerBlock_forward(self, x, context=None):
      return checkpoint(self._forward, x, context)
  
imports: from torch.utils.checkpoint import checkpoint
  import ldm.modules.attention
  import ldm.modules.diffusionmodules.openaimodel
label_desc: Use image node_id 1 for calling a global function with example usage: BasicTransformerBlock_forward(x, context) and returns: checkpoint