You are an expert in writing code in many different languages. Your goal is to perform code completion for the following code, keeping in mind the rest of the code and the file meta data.
    Metadata details:
    filename: base.rb
    path of file: ./repos/stackneveroverflow/vendor/bundle/ruby/2.3.0/gems/rails_admin-1.2.0/lib/rails_admin/config/fields
    
    the code of the file until where you have to start completion: require 'rails_admin/config/proxyable'
require 'rails_admin/config/configurable'
require 'rails_admin/config/hideable'
require 'rails_admin/config/grou
    
        def value
          bindings[:object].safe_send(name)
        rescue NoMethodError => e
          raise e.exception <<-EOM.gsub(/^\s{10}/, '')
          #{e.message}
          If you want to use a RailsAdmin virtual field(= a field without corresponding instance method),
          you should declare 'formatted_value' in the field definition.
            field :#{name} do
              formatted_value{ bindings[:object].call_some_method }
            end
          EOM
        end