code: def encode_as_int_f(input: DTensor, precision):
      return DTensor(
          input.shardings.map_shard(
              lambda x: (x * 2**precision).type(torch.int64),
              dtype=torch.int64,
          )
      )
  
imports: import torch
  from fate.arch.tensor import _custom_ops
  from ._tensor import DTensor, implements
label_desc: Use image node_id 2 for calling a global function with example usage: encode_as_int_f(input, precision) and returns: DTensor