import type ts from 'typescript';

declare module 'typescript' {
	interface Node {
		// eslint-disable-next-line @typescript-eslint/no-unnecessary-qualifier
		symbol?: ts.Symbol;
	}

	interface UnionType {
		// eslint-disable-next-line @typescript-eslint/no-unnecessary-qualifier
		origin?: ts.Type;
	}

	function isInternalDeclaration(node: Declaration, sourceFile: SourceFile): boolean;
}