docstr: handle static input
          
docstr_tok: ["handle","static","input"]
code: def get_static_input(self):
      """handle static input"""
      feed_dict = OrderedDict()
  
      for slot in self.config.slots:
          feed_dict[slot] = paddle.static.data(
              slot, shape=[-1, 1], dtype="int64"
          )
          feed_dict["%s_info" % slot] = paddle.static.data(
              "%s_info" % slot,
              shape=[
                  -1,
              ],
              dtype="int64",
          )
  
      feed_dict["node_id"] = paddle.static.data(
          "node_id", shape=[-1, 1], dtype="int64"
      )
      feed_dict["neg_idx"] = paddle.static.data(
          "neg_idx",
          shape=[
              -1,
          ],
          dtype="int64",
      )
  
      py_reader = paddle.io.DataLoader.from_generator(
          capacity=64,
          feed_list=list(feed_dict.values()),
          iterable=False,
          use_double_buffer=False,
      )
  
      return feed_dict, py_reader
  
imports: import math
  import time
  from collections import OrderedDict
  import paddle
  import paddle.nn
  import paddle.distributed.fleet
  import pgl
  import pgl.nn
  from pgl.distributed import helper
  from collections import OrderedDict
  import models.embedding
  import models.layers
label_desc: Use image node_id 2 for calling the WalkBasedModel obj's underlying member method code with example usage: obj.get_static_input() and returns: feed_dict,  py_reader