pub unsafe extern "C" fn switch_channel_perform_hangup(
channel: *mut switch_channel_t,
file: *const c_char,
func: *const c_char,
line: c_int,
hangup_cause: switch_call_cause_t,
) -> switch_channel_state_tpub unsafe extern "C" fn switch_channel_perform_hangup(
channel: *mut switch_channel_t,
file: *const c_char,
func: *const c_char,
line: c_int,
hangup_cause: switch_call_cause_t,
) -> switch_channel_state_t