class_docstr: WSCSample Class
class_docstr_tok: ["WSCSample","Class"]
docstr: Insert item after index of field value.
  
  :param str field: field name
  :param int index: modified scope
  :param new_item: inserted item
  :return: modified Sample
docstr_tok: ["Insert","item","after","index","of","field","value",".",":","param","str","field",":","field","name",":","param","int","index",":","modified","scope",":","param","new_item",":","inserted","item",":","return",":","modified","Sample"]
code: def insert_field_after_index(self, field, index, new_item):
      r"""
      Insert item after index of field value.
  
      :param str field: field name
      :param int index: modified scope
      :param new_item: inserted item
      :return: modified Sample
  
      """
  
      return self.insert_field_after_indices(field, [index], [new_item])
  
imports: from copy import deepcopy
  import nltk
  import string
  from .sample import Sample
  from ..field import TextField
  from ....common.utils.error import FlintError
  from ....common.utils.list_op import normalize_scope
label_desc: Use image node_id 11 for calling the WSCSample obj's underlying member method code with example usage: obj.insert_field_after_index(field, index, new_item) and returns: self