Integration Services #7777

hi everyone. I have microservises template. and I am trying to implement commutication between servises vie Integration Services. Do you have same sample how to implement it? In documentation (https://abp.io/docs/latest/solution-templates/microservice/http-api-calls) i can see that on client side we have to use HttpClient. Does it mean we have to use this one (https://learn.microsoft.com/en-us/dotnet/api/system.net.http.httpclient?view=net-8.0) or something from ABP?

Thank you in advance.