C++ std::string_view equivalent in D?

[0xFFFFFFFF via Digitalmars-d-learn]

What is the equivalent of C++17 std::string_view (an object that 
can refer to a constant contiguous sequence of char-like objects 
with the first element of the sequence at position zero) in D?

PS: I'm getting back to D after years (since DMD 1 days). A lot 
changes since v1.0.