code: def append_to_string_at_point(string, value, point):
      for _ in range(0, (point - len(string))):
          string += " "
      string += "{}".format(value)
      return string
  
imports: import math
  import numpy
  import random
  import scipy.sparse
  import six
  import tensorflow
  from weakref import WeakKeyDictionary
  from .input_utils import create_tensorrec_dataset_from_sparse_matrix, create_tensorrec_dataset_from_tfrecord
label_desc: Use image node_id 6 for calling a global function with example usage: append_to_string_at_point(string, value, point) and returns: string