build/lib/monaco-api.ts/isDefaultExport
function isDefaultExport(ts: typeof import('typescript'), declaration: ts.InterfaceDeclaration | ts.ClassDeclaration): boolean {
	return (
		hasModifier(declaration.modifiers, ts.SyntaxKind.DefaultKeyword)
		&& hasModifier(declaration.modifiers, ts.SyntaxKind.ExportKeyword)
	);
}