parameters: (self, gpu, non_blocking=True)
return_statement: return new_batch
docstring: transfer batch data to gpu
docstring_summary: transfer batch data to gpu
docstring_tokens: transfer batch data to gpu
function: def cpu2cpu(self, gpu, non_blocking=True):
          ''' transfer batch data to gpu '''
          # For each time step
          new_batch = self.empty_copy()
          new_batch.batch = {k: v.clone() for k, v in self.batch.items()}
          return new_batch
function_tokens: def cpu2cpu ( self , gpu , non_blocking = True ) : # For each time step new_batch = self . empty_copy ( ) new_batch . batch = { k : v . clone ( ) for k , v in self . batch . items ( ) } return new_batch