class_docstr: Checker used for enum fields.  Performs type-check and range check.
class_docstr_tok: ["Checker","used","for","enum","fields",".","Performs","type-check","and","range","check","."]
code: def DefaultValue(self):
      return self._enum_type.values[0].number
  
imports: import numbers
  import six
  from google.protobuf.internal import api_implementation
  from google.protobuf.internal import decoder
  from google.protobuf.internal import encoder
  from google.protobuf.internal import wire_format
  from google.protobuf import descriptor
label_desc: Use image node_id 3 for calling the EnumValueChecker obj's underlying member method code with example usage: obj.DefaultValue() and returns: self