This is a function in Tcl's C interface. It returns a reference to a `[Tcl_Obj]` that holds the empty string. The reference will have a reference-count of zero; it is up to the caller to increment the reference count via `[Tcl_IncrRefCount]` (or delegate that to one of the reference-retaining operations in Tcl's C interface) or to ensure its destruction via `[Tcl_DecrRefCount]`.

<<categories>>Tcl Library