Traceback (most recent call last):
  File "/usr/lib/python-exec/python3.9/ykman", line 33, in <module>
    sys.exit(load_entry_point('yubikey-manager==4.0.0', 'console_scripts', 'ykman')())
  File "/usr/lib/python3.9/site-packages/ykman/cli/__main__.py", line 367, in main
    cli(obj={})
  File "/usr/lib/python3.9/site-packages/click/core.py", line 1137, in __call__
    return self.main(*args, **kwargs)
  File "/usr/lib/python3.9/site-packages/click/core.py", line 1062, in main
    rv = self.invoke(ctx)
  File "/usr/lib/python3.9/site-packages/click/core.py", line 1668, in invoke
    return _process_result(sub_ctx.command.invoke(sub_ctx))
  File "/usr/lib/python3.9/site-packages/click/core.py", line 1668, in invoke
    return _process_result(sub_ctx.command.invoke(sub_ctx))
  File "/usr/lib/python3.9/site-packages/click/core.py", line 1666, in invoke
    sub_ctx = cmd.make_context(cmd_name, args, parent=ctx)
  File "/usr/lib/python3.9/site-packages/click/core.py", line 923, in make_context
    self.parse_args(ctx, args)
  File "/usr/lib/python3.9/site-packages/click/core.py", line 1379, in parse_args
    value, args = param.handle_parse_result(ctx, opts, args)
  File "/usr/lib/python3.9/site-packages/click/core.py", line 2364, in handle_parse_result
    value = self.process_value(ctx, value)
  File "/usr/lib/python3.9/site-packages/click/core.py", line 2320, in process_value
    value = self.type_cast_value(ctx, value)
  File "/usr/lib/python3.9/site-packages/click/core.py", line 2307, in type_cast_value
    return convert(value)
  File "/usr/lib/python3.9/site-packages/click/types.py", line 75, in __call__
    return self.convert(value, param, ctx)
  File "/usr/lib/python3.9/site-packages/ykman/cli/util.py", line 58, in convert
    name = super(EnumChoice, self).convert(value, param, ctx).replace("-", "_")
  File "/usr/lib/python3.9/site-packages/click/types.py", line 278, in convert
    normed_value = normed_value.casefold()
AttributeError: 'OATH_TYPE' object has no attribute 'casefold'