default ClickHouseArraySequence allocate(int length, Class<?> clazz) {
        return allocate(length, clazz, 1);
    }
Allocates an array according to given arguments. Same as
{@code allocate(length, clazz, 1)}.

@param length length of the array
@param clazz  optional value type, null means {@code Object.class}
@return this value
clickhouse-data/src/main/java/com/clickhouse/data/ClickHouseArraySequence.java