code: def ensure_data_valid(self, data: Dict[str, Any]) -> None:
      for data_name in self.data_fields:
          data_exists = data_name in data and len(data[data_name])
          if data_exists and len(data[data_name][0]) < 5:
              if self.params.label_fields is None:
                  raise ValueError(
                      "Please specify 'label_fields' in 'bbox_params' or add labels to the end of bbox "
                      "because bboxes must have labels"
                  )
      if self.params.label_fields:
          if not all(
              i in data.keys() for i in self.params.label_fields
          ):
              raise ValueError(
                  "Your 'label_fields' are not valid - them must have same names as params in dict"
              )
  
imports: from __future__ import division
  from typing import Any, Dict, List, Optional, Sequence, Tuple, TypeVar, cast
  import numpy
  from .transforms_interface import BoxInternalType, BoxType
  from .utils import DataProcessor, Params
label_desc: Use image node_id 3 for calling the BboxProcessor obj's underlying member method code with example usage: obj.ensure_data_valid(data) without return types