How to shard by a string field on the table using yaml from shardingsphere-proxy

[TheMasterRoot]

I have a fiel that is a UID var(14)
and i create a inline hash for it:

rules:
- !SHARDING
  tables:
    apuracao:
      actualDataNodes: shard_${0..4}.apuracao
      tableStrategy:
        standard:
          shardingColumn: identificador
          shardingAlgorithmName: hash_inline

shardingAlgorithms:
    hash_inline:
      type: INLINE
      props:
        sharding-count: 5
        algorithm-expression: shard_${Math.abs(identificador.hashCode()) % 5}

but its not working when i try to insert any data on the table it returns me this error:

INSERT INTO identificador(identificador) VALUES ('1a2b3c4d5e');
ERROR: Inline sharding algorithms expression 'shard_${(abs(identificador.hashCode())) % 5}' and sharding column 'identificador' do not match.

some one have the docs for it or know how to handle?