pub unsafe extern "C" fn ngx_stream_get_flushed_variable(
s: *mut ngx_stream_session_s,
index: usize,
) -> *mut ngx_variable_value_t
pub unsafe extern "C" fn ngx_stream_get_flushed_variable(
s: *mut ngx_stream_session_s,
index: usize,
) -> *mut ngx_variable_value_t