src/vs/editor/contrib/snippet/snippetVariables.ts/RandomBasedVariableResolver/resolve
class RandomBasedVariableResolver:	resolve(variable: Variable): string | undefined {
		const { name } = variable;

		if (name === 'RANDOM') {
			return Math.random().toString().slice(-6);
		} else if (name === 'RANDOM_HEX') {
			return Math.random().toString(16).slice(-6);
		} else if (name === 'UUID') {
			return generateUuid();
		}

		return undefined;
	}