code: def __init__(self, schema: Dict):
      super(MissingValidator, self).__init__(schema=schema)
      self._column_count = defaultdict(int)
      self._total_count = 0
  
file_path: contextual-ai/xai/data/validator/missing_validator.py
imports: from collections import defaultdict
  from typing import Dict
  import math
  import numpy
  from xai.data.exceptions import AttributeNotFound
  from xai.data.validator.abstract_validator import AbstractValidator
  from xai.data.validator.validation_stats import ValidationStats
label_desc: Use image node_id 1 to create a new MissingValidator object from inherited base classes: AbstractValidator with example: obj = MissingValidator(schema)