code: def reset_parameters(self):
      torch.nn.init.xavier_uniform_(self.lin1.weight)
      self.lin1.bias.data.fill_(0)
      torch.nn.init.xavier_uniform_(self.lin2.weight)
      self.lin2.bias.data.fill_(0)
  
imports: from math import pi
  import torch
  import torch.nn.functional
  from torch.nn import Embedding, Sequential, Linear
  from torch_scatter import scatter
  from torch_geometric.nn import radius_graph
label_desc: Use image node_id 2 for calling the update_u obj's underlying member method code with example usage: obj.reset_parameters() without return types