class_docstr: Base class to transform the dialogue state into an ML format.
  
  Subclasses of SingleStateFeaturizer will decide how a bot will
  transform the dialogue state into a dictionary mapping an attribute
  to its features. Possible attributes are: `INTENT`, `TEXT`, `ACTION_NAME`,
  `ACTION_TEXT`, `ENTITIES`, `SLOTS` and `ACTIVE_LOOP`. Each attribute will be
  featurized into a list of `rasa.utils.features.Features`.
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docstr: Encode all action from the domain.
  
  Args:
      domain: The domain that contains the actions.
      precomputations: Contains precomputed features and attributes.
  
  Returns:
      A list of encoded actions.
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code: def encode_all_labels(
      self,
      domain: Domain,
      precomputations: Optional[MessageContainerForCoreFeaturization],
  ) -> List[Dict[Text, List[Features]]]:
      """Encode all action from the domain.
  
      Args:
          domain: The domain that contains the actions.
          precomputations: Contains precomputed features and attributes.
  
      Returns:
          A list of encoded actions.
      """
      return [
          self._encode_action(action, precomputations)
          for action in domain.action_names_or_texts
      ]
  
imports: import logging
  import numpy
  import scipy.sparse
  from typing import List, Optional, Dict, Text, Set, Any
  from rasa.core.featurizers.precomputation import MessageContainerForCoreFeaturization
  from rasa.nlu.extractors.extractor import EntityTagSpec
  from rasa.nlu.utils import bilou_utils
  from rasa.nlu.utils.bilou_utils import BILOU_PREFIXES
  from rasa.shared.core.domain import SubState, State, Domain
  from rasa.shared.core.constants import PREVIOUS_ACTION, ACTIVE_LOOP, USER, SLOTS
  from rasa.shared.core.trackers import is_prev_action_listen_in_state
  from rasa.shared.nlu.constants import ENTITIES, FEATURE_TYPE_SENTENCE, ACTION_TEXT, ACTION_NAME, INTENT, NO_ENTITY_TAG, ENTITY_ATTRIBUTE_TYPE, ENTITY_TAGS, TEXT
  from rasa.shared.nlu.training_data.features import Features
  from rasa.utils.tensorflow import model_data_utils
label_desc: Use image node_id 12 for calling the SingleStateFeaturizer obj's underlying member method code with example usage: obj.encode_all_labels(domain, precomputations) and returns: unknown