Code from example doesn't work

[gerchicov-bp]

Description
The compiler is unable to type-check this expression in reasonable time; try breaking up the expression into distinct sub-expressions
File:
https://github.com/efremidze/Cluster/blob/a85c120db368b919aa4de313a2d35dfc8b28faff/Example/ViewController.swift
code:

annotation.coordinate = CLLocationCoordinate2D(latitude: region.center.latitude + drand48() * region.delta - region.delta / 2, longitude: region.center.longitude + drand48() * region.delta - region.delta / 2)

Screenshots
no need

Smartphone

• Device: independent
• OS: iOS 13 simulator
• Version: none

Checklist

• I updated Cluster to the latest version.
• I read the Contribution Guidelines.
• I read the documentation.
• I searched for existing GitHub issues.