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+The `self` keyword cannot appear alone as the last segment in a `use`
+declaration.
+
+Erroneous code example:
+
+```compile_fail,E0429
+use std::fmt::self; // error: `self` imports are only allowed within a { } list
+```
+
+To use a namespace itself in addition to some of its members, `self` may appear
+as part of a brace-enclosed list of imports:
+
+```
+use std::fmt::{self, Debug};
+```
+
+If you only want to import the namespace, do so directly:
+
+```
+use std::fmt;
+```