SchoolService

protocol SchoolServiceDelegate: AnyObject {
  func schoolServiceDidFinishFetching(_ service: SchoolService)
}

class SchoolService {
  weak var delegate: SchoolServiceDelegate?
  
  private(set) var nycHSList: [NYCHighSchool] = []
  
  func fetchHighschoolStuff() {
    // Move the code from fetchNYCHighSchoolInformation here (fetch, decode data into NYCHighSchool models, update nycHSList)
    // Try using JSONDecoder() instead of JSONSerialization
    // When finished, update nycHSList and notify the delegate
  }
}