code: def is_positive(self) -> bool:
      return True
  
imports: import numpy
  from typing import Any
  from typing import Tuple
  from typing import Optional
  from cftool.misc import print_warning
  from cftool.array import iou
  from cftool.array import corr
  from cftool.array import softmax
  from cftool.array import get_full_logits
  from cftool.array import get_label_predictions
  from cftool.types import np_dict_type
  from .schema import IMetric
  from .schema import IDataLoader
  from .constants import LABEL_KEY
  from .constants import PREDICTIONS_KEY
  from .misc.toolkit import insert_intermediate_dims
label_desc: Use image node_id 2 for calling the F1Score obj's underlying member method code with example usage: obj.is_positive() and returns: True