require
require
require
require
require
require
module
class
attr_reader
attr_reader
include
def
super()
return unless
if
return unless
if
else
case
when
do
end
when
do
end
else
end
end
end
end
def
unless
return
end
if
else
if
end
end
def
return if
end
def
end
def
end
def
do
end
end
private
def
return if
unless
return
end
return unless
if
return
end
if
return
end
end
def
if
elsif
elsif
end
end
def
return unless
end
def
do
end
end
def
do
begin
if
else
end
rescue
ensure
end
end
end
def
return if
end
end
end