module Gem::Release::Helper::Hash

def deep_merge(hash, other)

def deep_merge(hash, other)
  hash.merge(other, &MERGER)
end

def except(hash, *keys)

def except(hash, *keys)
  hash.reject { |key, _| keys.include?(key) }
end

def only(hash, *keys)

def only(hash, *keys)
  hash.select { |key, _| keys.include?(key) }
end

def symbolize_keys(hash)

def symbolize_keys(hash)
  hash.map do |key, obj|
    key = key.respond_to?(:to_sym) ? key.to_sym : key
    obj = symbolize_keys(obj) if obj.is_a?(::Hash)
    [key, obj]
  end.to_h
end