pub unsafe extern "C" fn Tcl_ChannelBlockModeProc(
chanTypePtr: *const Tcl_ChannelType,
) -> *mut Tcl_DriverBlockModeProcpub unsafe extern "C" fn Tcl_ChannelBlockModeProc(
chanTypePtr: *const Tcl_ChannelType,
) -> *mut Tcl_DriverBlockModeProc