class TOML::Keygroup

def initialize(nested_keys)
  @nested_keys = nested_keys
end

def navigate_keys(hash, symbolize_keys = false)
  @nested_keys.each do |key|
    key = symbolize_keys ? key.to_sym : key
    hash[key] = {} unless hash[key]
    hash = hash[key]
  end
  hash
end