#[unsafe(no_mangle)]pub unsafe extern "C" fn lmflow_ctx_input_at(
c: *const LMFlowContext,
idx: usize,
k: usize,
) -> LMFlowPacket#[unsafe(no_mangle)]pub unsafe extern "C" fn lmflow_ctx_input_at(
c: *const LMFlowContext,
idx: usize,
k: usize,
) -> LMFlowPacket