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# Feature Store
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Enterprise feature management with online and offline serving, feature versioning, and monitoring.
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## Capabilities
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### Featurestore Management
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Centralized feature repository with versioning and access control.
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```python { .api }
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class Featurestore:
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    @classmethod
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    def create(
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        cls,
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        featurestore_id: str,
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        online_store_fixed_node_count: Optional[int] = None,
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        online_store_scaling: Optional[Dict] = None,
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        labels: Optional[Dict[str, str]] = None,
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        encryption_spec_key_name: Optional[str] = None,
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        **kwargs
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    ) -> 'Featurestore': ...
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    def create_entity_type(
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        self,
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        entity_type_id: str,
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        description: Optional[str] = None,
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        labels: Optional[Dict[str, str]] = None,
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        monitoring_config: Optional[Dict] = None,
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        offline_storage_ttl_days: Optional[int] = None,
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        **kwargs
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    ) -> 'EntityType': ...
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    def list_entity_types(self, **kwargs) -> List['EntityType']: ...
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```
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### Entity Types and Features
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Manage feature schemas and metadata with type safety and validation.
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```python { .api }
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class EntityType:
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    def create_feature(
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        self,
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        feature_id: str,
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        value_type: str,
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        description: Optional[str] = None,
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        labels: Optional[Dict[str, str]] = None,
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        monitoring_config: Optional[Dict] = None,
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        **kwargs
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    ) -> 'Feature': ...
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    def batch_create_features(
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        self,
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        feature_configs: List[Dict[str, Any]],
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        **kwargs
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    ) -> List['Feature']: ...
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class Feature:
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    @classmethod
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    def create(
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        cls,
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        feature_id: str,
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        value_type: str,
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        entity_type: EntityType,
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        description: Optional[str] = None,
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        labels: Optional[Dict[str, str]] = None,
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        **kwargs
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    ) -> 'Feature': ...
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    def ingest_from_gcs(
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        self,
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        feature_ids: List[str],
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        gcs_source_uris: List[str],
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        entity_id_field: str,
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        feature_time_field: str,
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        worker_count: int = 1,
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        **kwargs
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    ) -> FeatureValueImportJob: ...
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```