incrementFieldBy method
HINCRBY or HINCRBYFLOAT - Increments a field from a Hash (int or float)
Implementation
Future<RedisReply> incrementFieldBy(
String key, String field, num value) async {
if (value is int) return command('HINCRBY', [key, field, '$value']);
return command('HINCRBYFLOAT', [key, field, '$value']);
}