Specifies an alternate folder path to be used when loading the TypeScript system typings.Signature:
API Extractor uses its own TypeScript compiler engine to analyze your project. If your project is built with a significantly different TypeScript version, sometimes API Extractor may report compilation errors due to differences in the system typings (e.g. lib.dom.d.ts). You can use the "--typescriptCompilerFolder" option to specify the folder path where you installed the TypeScript package, and API Extractor's compiler will use those system typings instead.