fn ChooseContextMode(
params: &BrotliEncoderParams,
data: &[u8],
pos: usize,
mask: usize,
length: usize,
) -> ContextType
fn ChooseContextMode(
params: &BrotliEncoderParams,
data: &[u8],
pos: usize,
mask: usize,
length: usize,
) -> ContextType