[Feat.] Support for simulating a function to determine request cost

[DiFronzo]

See this page for what is request cost. Make somthing that could simulate the run of a fucntion(s), without actually sending the request, to calculate the request cost in total or for each request.

Please share your thoughts on how it can be implemented and questions in this issue.

[AshirwadPradhan]

Hi, I would like to work on this issue. Let's discuss upon this as to how we can go about working on this issue !

[DiFronzo]

Hi @AshirwadPradhan, sorry for late response. I was thinking this might be solved by using methods, interfaces & composition. Like calling cost, err := c.GetUsage().simulate() should return a float and error (happy path for GetUsage() returns 0, nil).