x64 / ntdllntoskrnl /

_tlgWrapperByRef<16>

← 10.0.28000.3231 8 builds latest →
struct _tlgWrapperByRef<16>;/* opaque */

Declared but not defined in ntoskrnl's public PDB for this build: a forward declaration, or a name that only appears in mangled C++ symbols. The layout isn't public here.