class Hash
def stringify_keys
def stringify_keys keys.each do |key| self[key.to_s] = delete(key) end self end if !{}.respond_to?(:stringify_keys)
def symbolize_keys
def symbolize_keys keys.each do |key| self[(key.to_sym rescue key) || key] = delete(key) end self end if !{}.respond_to?(:symbolize_keys)