TclStubs.tcl_PkgProvideEx

Undocumented in source but is binding to C. You might be able to learn more by searching the web for its name.
struct TclStubs
extern (C)
int function(Tcl_Interp* interp, const(char)* name, const(char)* version_, ClientData clientData) nothrow tcl_PkgProvideEx;

Meta