serialize
# The milestone id on Github.
- var number: Int is writable
+ var number: nullable Int = null is writable
# Milestone title.
var title: String is writable
var description: nullable String is writable
# Count of opened issues linked to this milestone.
- var open_issues: Int is writable
+ var open_issues: nullable Int = null is writable
# Count of closed issues linked to this milestone.
- var closed_issues: Int is writable
+ var closed_issues: nullable Int = null is writable
# Milestone state.
var state: nullable String is writable