export declare const ENTITY_METADATA = "entity:metadata";
export declare const ENTITY_COLUMN_OPTIONS = "entity:column-options";
export declare const ENTITY_WATERMARK = "entity:watermark";
export declare const NESTED_ENTITY_WATERMARK = "entity:nested-watermark";
export declare const DEFAULT_CONNECTION_NAME = "default";
export declare const INTERNAL_DATA_SOURCE = "internal:data-source";