methopara is stands for METHOd PARAmeters.
INSTALL:
sudo gem install methopara --source http://merbi.st
REQUIREMENT:
Ruby-1.9.1 only.
USAGE:
>> require "rubygems"
>> require "methopara"
>> def foo(a,b=nil,&c) end
>> method(:foo).parameters
=> [[:req, :a], [:opt, :b], [:block, :c]]