docs: def update_lipd_version(L):
      """
      Metadata is indexed by number at this step.
  
      Use the current version number to determine where to start updating from. Use "chain versioning" to make it
      modular. If a file is a few versions behind, convert to EACH version until reaching current. If a file is one
      version behind, it will only convert once to the newest.
      :param dict L: Metadata
      :return dict d: Metadata
      """
      # Get the lipd version number.
      L, version = get_lipd_version(L)
  
      # Update from (N/A or 1.0) to 1.1
      if version in [1.0, "1.0"]:
          L = update_lipd_v1_1(L)
          version = 1.1
  
      # Update from 1.1 to 1.2
      if version in [1.1, "1.1"]:
          L = update_lipd_v1_2(L)
          version = 1.2
      if version in [1.2, "1.2"]:
          L = update_lipd_v1_3(L)
          version = 1.3
  
      L = fix_doi(L)
      L["lipdVersion"] = 1.3
      return L