/**
 * Symbol-keyed internals.
 *
 * Field accessors are generated from schema field names, which are arbitrary
 * strings. Symbols guarantee an object type can never define a field that
 * collides with our own bookkeeping.
 */
/** Backing store of field values, keyed by epJSON field name. */
export declare const DATA: unique symbol;
/** The object's shape (type name, schema definition, prototype). */
export declare const SHAPE: unique symbol;
/** Owning document, or undefined for a detached object. */
export declare const OWNER: unique symbol;
/** The object's name as written in the file. May be empty. */
export declare const NAME: unique symbol;
/**
 * The object's key within its collection.
 *
 * Usually identical to the name. It differs for objects that have no name
 * (`Version`) and for those whose name is legitimately blank (EnergyPlus lets
 * `WeatherProperty:SkyTemperature` omit its name to mean "all run periods"),
 * which still need a unique slot in the collection.
 */
export declare const KEY: unique symbol;
/**
 * Index into the document's `PreservedSource.anchors`, or `undefined`.
 *
 * The touched record. An object still carrying its statement's index, whose anchor is still this
 * object, is written by copying those characters; anything that changes the object clears it.
 *
 * Maintained as changes happen rather than compared at write time. Comparing would mean holding a
 * second copy of the model, and it is wrong in the case that matters most: a field written to a
 * new value and back again is unchanged by comparison and touched in truth.
 */
export declare const SOURCE: unique symbol;
/**
 * Which statement an object was READ from, kept whether or not it has since changed.
 *
 * `SOURCE` is cleared the moment an object is touched, because its absence is what marks the
 * object as needing to be rewritten. That makes it useless for saying where the old characters
 * were, which is exactly the question a consumer building a minimal edit has to ask about a
 * CHANGED object. This is the same number, recorded once and never cleared.
 *
 * Deliberately untagged, as `SOURCE` above is. `stripInternal` drops a declaration whose JSDoc
 * carries the tag, and `object.ts` declares a property keyed on this symbol, so tagging it emits a
 * `.d.ts` that references a symbol its own module no longer declares and the build stops. Being
 * absent from the package index is what makes this module internal, and that part holds.
 *
 * The tag is matched as TEXT anywhere in the comment, so naming it here would strip this too.
 */
export declare const ORIGIN: unique symbol;
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