```ruby
require File.expand_path("../lib/cxml/version", __FILE__)

Gem::Specification.new do |s|
  s.name        = "cxml"
  s.version     = CXML::VERSION
  s.summary     = "Ruby library to work with cXML protocol"
  s.description = "Ruby library to work with cXML protocol"
  s.homepage    = "http://github.com/sosedoff/cxml"
  s.authors     = ["Dan Sosedoff"]
  s.email       = ["dan.sosedoff@gmail.com"]

  s.add_development_dependency "rake"
  s.add_development_dependency "rspec", "~> 3.4"

  s.add_dependency "nokogiri", "~> 1.6"
  s.add_dependency "xml-simple", "~> 1.1.5"

  s.files = Dir['lib/*.rb'] + Dir['lib/cxml/*.rb'] + Dir['bin/*']
  s.files += Dir['[A-Z]*'] + Dir['spec/**/*']

  s.require_paths = ["lib"]
  s.required_ruby_version = ">= 2.3.1"
end```

Include pry as dev dependency
user
```ruby
require File.expand_path("../lib/cxml/version", __FILE__)

Gem::Specification.new do |s|
  s.name        = "cxml"
  s.version     = CXML::VERSION
  s.summary     = "Ruby library to work with cXML protocol"
  s.description = "Ruby library to work with cXML protocol"
  s.homepage    = "http://github.com/sosedoff/cxml"
  s.authors     = ["Dan Sosedoff"]
  s.email       = ["dan.sosedoff@gmail.com"]

  s.add_development_dependency "rake"
  s.add_development_dependency "rspec", "~> 3.4"
  s.add_development_dependency "pry"

  s.add_dependency "nokogiri", "~> 1.6"
  s.add_dependency "xml-simple", "~> 1.1.5"

  s.files = Dir['lib/*.rb'] + Dir['lib/cxml/*.rb'] + Dir['bin/*']
  s.files += Dir['[A-Z]*'] + Dir['spec/**/*']

  s.require_paths = ["lib"]
  s.required_ruby_version = ">= 2.3.1"
end```
assistant