pub unsafe extern "C" fn switch_channel_wait_for_app_flag(
channel: *mut switch_channel_t,
app_flag: u32,
key: *const c_char,
pres: switch_bool_t,
to: u32,
) -> switch_status_tpub unsafe extern "C" fn switch_channel_wait_for_app_flag(
channel: *mut switch_channel_t,
app_flag: u32,
key: *const c_char,
pres: switch_bool_t,
to: u32,
) -> switch_status_t