code: def init_offset(self):
      self.conv_offset_mask.weight.data.zero_()
      self.conv_offset_mask.bias.data.zero_()
  
imports: import math
  import torch
  import torch.nn
  from torch.nn.modules.utils import _pair
  from ..functions.deform_conv import deform_conv, modulated_deform_conv
label_desc: Use image node_id 2 for calling the ModulatedDeformConvPack obj's underlying member method code with example usage: obj.init_offset() without return types