tree 1c5e13010830c289b1cc1f4afbc3552c50c9f388
parent 06e85d5aec2a7e82d741a73f876465ffec49d56a
author Ola Petersson <olbpetersson@gmail.com> 1538922137 +0200
committer Vsevolod Tolstopyatov <qwwdfsad@gmail.com> 1538989247 +0300

Added type <Unit> to be consistent with the text

In the text it states that "We explicitly specificy its `Unit` return type" but the code example does not explicitly set it