..
  Normally, there are no heading levels assigned to certain characters as the structure is
  determined from the succession of headings. However, this convention is used in Python’s
  Style Guide for documenting which you may follow:

  # with overline, for parts
  * for chapters
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  ^ for subsubsections
  " for paragraphs

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Introduction
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Restic is a fast and secure backup program. In the following sections, we will
present typical workflows, starting with installing, preparing a new
repository, and making the first backup.