def camelize_keys!(hash)
      hash.keys.each do |key|
        hash[key.to_s.camelize(:lower).to_sym] = hash.delete key
      end if hash.is_a? Hash
      hash
    end
def camelize_keys!(hash)
      hash.keys.each do |key|
        hash[key.to_s.camelize(:lower).to_sym] = hash.delete key
      end if hash.is_a? Hash
      hash
    end
Destructively converts all the keys of hash to camel-case symbols.
 Note: This is to be invoked by all YouTube API except Accounts