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+# Comments
+
+Every package should have a package comment. It should immediately precede the ` package ` statement in one of the files in the package. (It only needs to appear in one file.) It should begin with a single sentence that begins "Package _packagename_" and give a concise summary of the package functionality. This introductory sentence will be used in godoc's list of all packages.
+
+Subsequent sentences and/or paragraphs can give more details. Sentences should be properly punctuated.
+
+```
+// Package superman implements methods for saving the world.
+//
+// Experience has shown that a small number of procedures can prove
+// helpful when attempting to save the world.
+package superman
+```
+
+Nearly every top-level type, const, var and func should have a comment. A comment for bar should be in the form "_bar_ floats on high o'er vales and hills.". The first letter of _bar_ should not be capitalized unless it's capitalized in the code.
+
+```
+// enterOrbit causes Superman to fly into low Earth orbit, a position
+// that presents several possibilities for planet salvation.
+func enterOrbit() os.Error {
+  ...
+}
+```
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