presto-spi/src/main/java/io/prestosql/spi/type/AbstractVariableWidthType.java/AbstractVariableWidthType/createBlockBuilder
class AbstractVariableWidthType:    @Override
    public BlockBuilder createBlockBuilder(BlockBuilderStatus blockBuilderStatus, int expectedEntries)
    {
        return createBlockBuilder(blockBuilderStatus, expectedEntries, EXPECTED_BYTES_PER_ENTRY);
    }