presto-hive/src/main/java/io/prestosql/plugin/hive/coercions/IntegerNumberToVarcharCoercer.java/IntegerNumberToVarcharCoercer/IntegerNumberToVarcharCoercer
class IntegerNumberToVarcharCoercer:    public IntegerNumberToVarcharCoercer(F fromType, VarcharType toType)
    {
        super(fromType, toType);
    }