docs: def get_lipd_version(L):
      """
      Check what version of LiPD this file is using. If none is found, assume it's using version 1.0
      :param dict L: Metadata
      :return float:
      """
      version = 1.0
      _keys = ["LipdVersion", "LiPDVersion", "lipdVersion", "liPDVersion"]
      for _key in _keys:
          if _key in L:
              version = L[_key]
              # Cast the version number to a float
              try:
                  version = float(version)
              except AttributeError:
                  # If the casting failed, then something is wrong with the key so assume version is 1.0
                  version = 1.0
              L.pop(_key)
      return L, version