class_docstr: :class:`~fastNLP.core.dataset.DatSet` 中用于表示列的数据类型。
  
  :param name: 字符串的名称
  :param content: 任意类型的数据
class_docstr_tok: [":","class",":","`","~fastNLP.core.dataset.DatSet","`","\u4e2d\u7528\u4e8e\u8868\u793a\u5217\u7684\u6570\u636e\u7c7b\u578b\u3002",":","param","name",":","\u5b57\u7b26\u4e32\u7684\u540d\u79f0",":","param","content",":","\u4efb\u610f\u7c7b\u578b\u7684\u6570\u636e"]
docstr: 当调用处理函数之后，决定是否要替换 field。
  
  :param new_contents:
  :param inplace:
  :return: self或者生成的content
docstr_tok: ["\u5f53\u8c03\u7528\u5904\u7406\u51fd\u6570\u4e4b\u540e\uff0c\u51b3\u5b9a\u662f\u5426\u8981\u66ff\u6362","field\u3002",":","param","new_contents",":",":","param","inplace",":",":","return",":","self\u6216\u8005\u751f\u6210\u7684content"]
code: def _after_process(self, new_contents: list, inplace: bool):
      r"""
      当调用处理函数之后，决定是否要替换 field。
  
      :param new_contents:
      :param inplace:
      :return: self或者生成的content
      """
      if inplace:
          self.content = new_contents
          return self
      else:
          return new_contents
  
imports: from collections import Counter
  from typing import Any, Union, List, Callable
  from ..log import logger
  import numpy
label_desc: Use image node_id 16 for calling the FieldArray obj's underlying member method code with example usage: obj._after_process(new_contents, inplace) and returns: self, new_contents