class_docstr: Base Sample class to hold the necessary info and provide atomic operations
class_docstr_tok: ["Base","Sample","class","to","hold","the","necessary","info","and","provide","atomic","operations"]
docstr: Delete items of given scopes of field value.
  
  :param str field: field value
  :param int|list|slice index:
      can be int indicate delete single item or their list like [1, 2, 3],
      can be list like (0,3) indicate replace items
          from 0 to 3(not included),
      can be slice which would be convert to list.
  :return: Modified Sample
docstr_tok: ["Delete","items","of","given","scopes","of","field","value",".",":","param","str","field",":","field","value",":","param","int|list|slice","index",":","can","be","int","indicate","delete","single","item","or","their","list","like","[","1",",","2",",","3","]",",","can","be","list","like","(","0,3",")","indicate","replace","items","from","0","to","3","(","not","included",")",",","can","be","slice","which","would","be","convert","to","list",".",":","return",":","Modified","Sample"]
code: def delete_field_at_index(self, field, index):
      r"""
      Delete items of given scopes of field value.
  
      :param str field: field value
      :param int|list|slice index:
          can be int indicate delete single item or their list like [1, 2, 3],
          can be list like (0,3) indicate replace items
              from 0 to 3(not included),
          can be slice which would be convert to list.
      :return: Modified Sample
  
      """
      return self.delete_field_at_indices(field, [index])
  
imports: import copy
  from abc import ABC, abstractmethod
  from ..field import ListField, TextField
  from ....common.settings import MODIFIED_MASK
  from ....common.preprocess.en_processor import EnProcessor
label_desc: Use image node_id 16 for calling the Sample obj's underlying member method code with example usage: obj.delete_field_at_index(field, index) and returns: self