Function C_RustWStream_construct 

pub unsafe extern "C" fn C_RustWStream_construct(
    uninitialized: *mut RustWStream,
    data: *mut c_void,
    write: Option<unsafe extern "C" fn(arg1: *mut c_void, arg2: *const c_void, arg3: usize) -> bool>,
    flush: Option<unsafe extern "C" fn(arg1: *mut c_void)>,
)