class Bundler::Thor::Arguments

def parse_hash(name)


{ "name" => "string", "age" => "integer" }

Becomes:

[ "name:string", "age:integer" ]

mark it as a hash:
Runs through the argument array getting strings that contains ":" and 
def parse_hash(name)
  return shift if peek.is_a?(Hash)
  hash = {}
  while current_is_value? && peek.include?(":")
    key, value = shift.split(":", 2)
    raise MalformattedArgumentError, "You can't specify '#{key}' more than once in option '#{name}'; got #{key}:#{hash[key]} and #{key}:#{value}" if hash.include? key
    hash[key] = value
  end
  hash
end