You are an expert in writing code in many different languages. Your goal is to perform code completion for the following code, keeping in mind the rest of the code and the file meta data.
    Metadata details:
    filename: threading.rs
    path of file: ./repos/divans/src
    
    the code of the file until where you have to start completion: use core;
#[allow(unused_imports)]
use interface::{DivansCompressorFactory, BlockSwitch, LiteralBlockSwitch, Command, Compressor, CopyCommand, Decompressor, DictCommand, LiteralCommand, Nop, NewWithAllocator, ArithmeticEncoderOrDecoder, LiteralPredictionModeNibble, PredictionModeContextMap, free_cmd, FeatureFlagSliceType, StreamDemuxer, ReadableBytes, StreamID, NUM_STREAMS, EncoderOrDecoderRecoderSpecialization};
use ::interface::{DivansOutputResult, ErrMsg};
use slice_util::{AllocatedMemoryRange, AllocatedMemoryPrefix, SlicePlaceholder32};
use alloc::{SliceWrapper, SliceWrapperMut, Allocator};
use alloc_util::RepurposingAlloc;
use ::alloc_util::UninitializedOnAlloc;
use cmd_to_raw::DivansRecodeState;
pub enum ThreadData<AllocU8:
    
    pub fn new(mc:&mut AllocCommand) -> Self {
        SerialWorker::<AllocU8, AllocCommand> {
            waiters: 0,
            eof_present_in_result: CommandResult::Ok,
            data_len: 0,
            data:[ThreadData::<AllocU8>::default(),
                  ThreadData::<AllocU8>::default()],
            cm_len: 0,
            cm: [empty_prediction_mode_context_map::<AllocatedMemoryPrefix<u8, AllocU8>>(),
                 empty_prediction_mode_context_map::<AllocatedMemoryPrefix<u8, AllocU8>>()],
            result:AllocatedMemoryPrefix::<StaticCommand, AllocCommand>::realloc(mc.alloc_cell(NUM_SERIAL_COMMANDS_BUFFERED),0),
            result_cm: [empty_prediction_mode_context_map::<AllocatedMemoryPrefix<u8, AllocU8>>(),
                        empty_prediction_mode_context_map::<AllocatedMemoryPrefix<u8, AllocU8>>()],
            result_data:[AllocatedMemoryRange::<u8, AllocU8>::default(),
                         AllocatedMemoryRange::<u8, AllocU8>::default()],
            err: None,
        }
    }