class_docstr: Abstract base class for creation of new serializers.
  
  Provides a skeleton for customization requiring the overriding of the method
  serialize and the class attribute CONTENT_TYPE.
docstr: The MIME type of the data sent to the inference endpoint.
docstr_tok: ["The","MIME","type","of","the","data","sent","to","the","inference","endpoint","."]
code: def CONTENT_TYPE(self):
      """The MIME type of the data sent to the inference endpoint."""
  
imports: from __future__ import absolute_import
  import abc
  from collections.abc import Iterable
  import csv
  import io
  import json
  import numpy
  from pandas import DataFrame
  from six import with_metaclass
  from sagemaker.utils import DeferredError
label_desc: Use image node_id 2 for calling the BaseSerializer obj's underlying member method code with example usage: obj.CONTENT_TYPE() without return types