For a class that includes Comparable and defines <=> as shown, what is the value of `a == b`?
class Version
include Comparable
attr_reader :parts
def initialize(str)
@parts = str.split('.').map(&:to_i)
end
def <=>(other)
parts <=> other.parts
end
end
a = Version.new('1.2.0')
b = Version.new('1.2')
a == b