@Test
    public void canUnwriteWithTemplates() {
        CodeWriter writer = new CodeWriter().insertTrailingNewline(false);
        writer.writeInline("Hi.Hello");
        writer.unwrite("$L", "Hello");

        assertThat(writer.toString(), equalTo("Hi."));
    }
\n"
                                + " * Foo \"foo!\"\n"
                                + " *\n"
                                + " * \"baz\"!\n"
                                + " * Yap!\n"
                                + " *     This is indented, in flow of parent.\n"
                                + " *     Yap!\n"
                                + " *     Yap?\n"
                                + " *     # Has a prefix\n"
                                + " *     # Yes\n"
                                + "
smithy-utils/src/test/java/software/amazon/smithy/utils/CodeWriterTest.java