pub unsafe extern "C" fn Tcl_GetChannelOption(
interp: *mut Tcl_Interp,
chan: Tcl_Channel,
optionName: *const c_char,
dsPtr: *mut Tcl_DString,
) -> c_intpub unsafe extern "C" fn Tcl_GetChannelOption(
interp: *mut Tcl_Interp,
chan: Tcl_Channel,
optionName: *const c_char,
dsPtr: *mut Tcl_DString,
) -> c_int