Function libsodium_sys::crypto_secretstream_xchacha20poly1305_init_pull

pub unsafe extern "C" fn crypto_secretstream_xchacha20poly1305_init_pull(
    state: *mut crypto_secretstream_xchacha20poly1305_state, 
    header: *const c_uchar, 
    k: *const c_uchar
) -> c_int