class_docstr: WSCSample Class
class_docstr_tok: ["WSCSample","Class"]
docstr: Delete items of given scopes of field value.
  
  :param string field: transformed field
  :param list del_index: index of delete position
  :return WSDSample sample: a modified sample
docstr_tok: ["Delete","items","of","given","scopes","of","field","value",".",":","param","string","field",":","transformed","field",":","param","list","del_index",":","index","of","delete","position",":","return","WSDSample","sample",":","a","modified","sample"]
code: def delete_field_at_index(self, field, del_index):
      """Delete items of given scopes of field value.
  
      :param string field: transformed field
      :param list del_index: index of delete position
      :return WSDSample sample: a modified sample
      """
      return self.delete_field_at_indices(field, [del_index])
  
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 7 for calling the WSCSample obj's underlying member method code with example usage: obj.delete_field_at_index(field, del_index) and returns: self