pub unsafe extern "C" fn PackbitsEncodeImage(
arg1: *mut Image,
arg2: usize,
arg3: *mut c_uchar,
arg4: *mut ExceptionInfo,
) -> MagickBooleanTypepub unsafe extern "C" fn PackbitsEncodeImage(
arg1: *mut Image,
arg2: usize,
arg3: *mut c_uchar,
arg4: *mut ExceptionInfo,
) -> MagickBooleanType