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Some topics aren’t exactly relevant to how you program but provide you
tooling or infrastructure support which just makes things better for
everyone. These topics include:

• Documentation: Generate library documentation for users via the included
  rustdoc.
• Testing: Create testsuites for libraries to give confidence that your
  library does exactly what it’s supposed to.
• Benchmarking: Create benchmarks for functionality to be confident that
  they run quickly.