```ruby
$LOAD_PATH.push File.expand_path("../lib", __FILE__)
require 'active_resource/version'

Gem::Specification.new do |s|
  s.platform    = Gem::Platform::RUBY
  s.name        = 'activeresource'
  s.version     = ActiveResource::VERSION::STRING
  s.summary     = 'REST modeling framework (part of Rails).'
  s.description = 'REST on Rails. Wrap your RESTful web app with Ruby classes and work with them like Active Record models.'
  s.license     = 'MIT'

  s.author      = 'David Heinemeier Hansson'
  s.email       = 'david@loudthinking.com'
  s.homepage    = 'http://www.rubyonrails.org'

  s.files = Dir['README.rdoc', 'lib/**/*']
  s.require_path = 'lib'

  s.extra_rdoc_files = %w( README.rdoc )
  s.rdoc_options.concat ['--main',  'README.rdoc']

  s.required_ruby_version = '>= 2.2.2'

  s.add_dependency('activesupport', '>= 5.0', '< 6')
  s.add_dependency('activemodel', '>= 5.0', '< 6')
  s.add_dependency('activemodel-serializers-xml', '~> 1.0')

  s.add_development_dependency('rake')
  s.add_development_dependency('mocha', '>= 0.13.0')
end
```

Include lincense file in the package
user
```ruby
$LOAD_PATH.push File.expand_path("../lib", __FILE__)
require 'active_resource/version'

Gem::Specification.new do |s|
  s.platform    = Gem::Platform::RUBY
  s.name        = 'activeresource'
  s.version     = ActiveResource::VERSION::STRING
  s.summary     = 'REST modeling framework (part of Rails).'
  s.description = 'REST on Rails. Wrap your RESTful web app with Ruby classes and work with them like Active Record models.'
  s.license     = 'MIT'

  s.author      = 'David Heinemeier Hansson'
  s.email       = 'david@loudthinking.com'
  s.homepage    = 'http://www.rubyonrails.org'

  s.files = Dir['MIT-LICENSE', 'README.rdoc', 'lib/**/*']
  s.require_path = 'lib'

  s.extra_rdoc_files = %w( README.rdoc )
  s.rdoc_options.concat ['--main',  'README.rdoc']

  s.required_ruby_version = '>= 2.2.2'

  s.add_dependency('activesupport', '>= 5.0', '< 6')
  s.add_dependency('activemodel', '>= 5.0', '< 6')
  s.add_dependency('activemodel-serializers-xml', '~> 1.0')

  s.add_development_dependency('rake')
  s.add_development_dependency('mocha', '>= 0.13.0')
end
```
assistant