extensions/typescript-language-features/src/utils/configuration.ts/fromString
	export function fromString(value: string): TsServerLogLevel {
		switch (value?.toLowerCase()) {
			case 'normal':
				return TsServerLogLevel.Normal;
			case 'terse':
				return TsServerLogLevel.Terse;
			case 'verbose':
				return TsServerLogLevel.Verbose;
			case 'off':
			default:
				return TsServerLogLevel.Off;
		}
	}