def greet(name)
puts "Hello, #{name}"
end
def add(a, b)
a + b
end
def configure(url, port = 8080)
puts "Connecting to #{url} on port #{port}"
end
def fetch(path, retries: 3, timeout: 5)
retries.times { puts path }
puts "timeout=#{timeout}"
end
def main
greet('world')
add(1, 2)
configure('localhost')
end