Some clarification on setting up Policy Recording Bot

I am trying to set up Policy Recording Bot and following steps mentioned in this documentation. I was stuck because of few doubts

1. "For the calling webhook, by default the notification will go to https://{your domain}/api/calling. This is configured with the CallSignalingRoutePrefix in HttpRouteConstants.cs." In this line what should I replace with {your domain}?

2. "The permission needs to be consented by tenant admin. Go to "https://login.microsoftonline.com/common/adminconsent?client_id=<app_id>&state=<any_number>&redirect_uri=<any_callback_url>" using tenant admin to sign-in, then consent for the whole tenant." In this line, what will be my app_id, any_number and any_callback_url

3. While I'm trying to run the command "Import-Module SkypeOnlineConnector" in powershell, it throws an error "The specified module 'SkypeOnlineConnector' was not loaded because no valid module file was found in any module directory". Could you please tell the possible mistake

Read the linked PolicyRecordingBot documentation and Samples/V1.0Samples/LocalMediaSamples/PolicyRecordingBot/FrontEnd/Http/Controllers/HttpRouteConstants.cs first. Review the three setup questions, including the SkypeOnlineConnector command, and update the documentation so the placeholder values and module prerequisite are explicit.