How do I debug a AWS lambda services created with .NET Core locally using AWS .NET Mock Lambda Test Tool?

How do I debug a AWS lambda services created with .NET Core locally using AWS .NET Mock Lambda Test Tool?

Are aws-lambda-tools-defaults.json and template configured correctly? If it is not, the function part may appear empty.
{
"Information": [
"This file provides default values for the deployment wizard inside Visual Studio and the AWS Lambda commands added to the .NET Core CLI."
],
"profile": "default",
"region": "eu-central-1",
"configuration": "Release",
"framework": "netcoreapp3.1",
"template": "serverless.template"
}