[ytti@ytti.fi ~]% ./asdf.rb
Proc
moi
jee
[ytti@ytti.fi ~]% cat asdf.rb
#!/usr/bin/env ruby
 
 
def jee &block
  moi(block)
end
 
def moi jee
  p jee.class
  puts 'moi'
  jee.call
end
 
jee do |hehhi|
  puts 'jee'
end
[ytti@ytti.fi ~]%