pub unsafe extern "C" fn switch_channel_transfer_variable_prefix(
orig_channel: *mut switch_channel_t,
new_channel: *mut switch_channel_t,
prefix: *const c_char,
) -> switch_status_tpub unsafe extern "C" fn switch_channel_transfer_variable_prefix(
orig_channel: *mut switch_channel_t,
new_channel: *mut switch_channel_t,
prefix: *const c_char,
) -> switch_status_t