Top-level "this" will be replaced with undefined since this file is an ECMAScript module

[mpstadler]

When using "ts-cacheable": "1.0.19" and running ng build --verbose I get the following DEBUG warning:

⚡ Done in 2807ms
● [DEBUG] Top-level "this" will be replaced with undefined since this file is an ECMAScript module [this-is-undefined-in-esm]

    node_modules/ts-cacheable/dist/esm2015/promise.cacheable.decorator.js:26:124:
      26 │             storageStrategy.remove ? storageStrategy.remove(cachePairs.indexOf(_foundCachePair), _foundCachePair, cacheKey, this) : storageStrategy.removeAtIndex(cachePairs.indexOf(_foundCachePair), cacheKey, this);
         │                                                                                                                             ~~~~
         ╵                                                                                                                             undefined

  This file is considered to be an ECMAScript module because of the "export" keyword here:

    node_modules/ts-cacheable/dist/esm2015/promise.cacheable.decorator.js:91:0:
      91 │ export function PCacheable(cacheConfig = {}) {
         ╵ ~~~~~~
⠇ Building...

Would be nice if this warning would be gone.