Error when running doctor.explain

[lud-wj]

** (BadBooleanError) expected a boolean on left-side of "and", got: :not_struct
(doctor 0.21.0) lib/reporters/module_explain.ex:85: Doctor.Reporters.ModuleExplain.valid_module?/2
(doctor 0.21.0) lib/mix/tasks/doctor.explain.ex:111: Mix.Tasks.Doctor.Explain.run_default/2
(mix 1.15.7) lib/mix/task.ex:455: anonymous fn/3 in Mix.Task.run_task/5
(mix 1.15.7) lib/mix/cli.ex:92: Mix.CLI.run_task/2
/home/lud/.local/share/rtx/installs/elixir/v1.15.7-otp-26/bin/mix:2: (file)

This function returns :not_struct instead of a boolean:

  defp valid_struct_spec?(module_report, config) do
    (config.struct_type_spec_required and module_report.has_struct_type_spec == :not_struct) or
      module_report.has_struct_type_spec
  end