@babylonjs/core
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TypeScript
/**
* Ensures the global `Symbol.metadata` well-known symbol exists.
*
* The serialization decorator store keys its metadata off `Symbol.metadata`. On a runtime that
* supports `Symbol` but does not yet expose `Symbol.metadata` natively, the symbol must be created
* so decorated classes can attach their serialization metadata to their constructor.
*
* This module installs the symbol as a one-time, idempotent side effect. Import it for its side
* effect at package entry points before any decorated class is evaluated.
*/
declare function ApplySymbolMetadataPolyfill(): void;