Function ml__start_training 

pub unsafe extern "C" fn ml__start_training(
    hive_url_ptr: *const u8,
    hive_url_len: u32,
    hive_port: u32,
    game_name_ptr: *const u8,
    game_name_len: u32,
    experiment_name_ptr: *const u8,
    experiment_name_len: u32,
    num_features: u32,
    num_actions: u32,
    num_remote_workers: u32,
    config_ptr: *const u8,
    config_len: u32,
    checkpoint_ptr: *const u8,
    checkpoint_len: u32,
    training_duration_in_seconds: u64,
    __ark_ffi_output: *mut FutureHandle,
) -> ErrorCode

Starts training.

The promise outputs a TrainingHandle.

Will start from a checkpoint if the checkpoint parameter is non-empty.