code: def clear_overflow_state(self):
      self._has_overflow = False
      if self.has_fused_kernel:
          self._overflow_buf.zero_()
  
file_path: apex/apex/amp/scaler.py
imports: import torch
  from ..multi_tensor_apply import multi_tensor_applier
  from ._amp_state import _amp_state, master_params, maybe_print
  from itertools import product
label_desc: Use image node_id 7 for calling the LossScaler obj's underlying member method code with example usage: obj.clear_overflow_state() without return types