Create an Apex class in the public scope

Name: RandomContactFactory $($without the @isTest annotation$)$

Use a Public Static Method to consistently generate contacts with unique first names based on the iterated number in the format Test $0,$ Test $1,$ and so on

Method Name: generateRandomContacts $($without the @isTest annotation$)$

Parameter $1$: An integer that controls the number of contacts being generated with unique first names, such as Test $0$ and Test $1$

Parameter $2$: A string containing the common last name of the contacts

Return Type: ListCreate a graph of