1 <span class="kw">use </span><span class="kw">crate</span>::a::foo;
2 <span class="kw">use </span><span class="self">self</span>::whatever;
3 <span class="kw">let </span>x = <span class="kw">super</span>::b::foo;
4 <span class="kw">let </span>y = <span class="self">Self</span>::whatever;