```ruby
$LOAD_PATH.unshift(File.join(File.dirname(__FILE__), '..', 'lib'))
$LOAD_PATH.unshift(File.dirname(__FILE__))

require 'rspec'
require 'authy'
require 'pry'

# Requires supporting files with custom matchers and macros, etc,
# in ./support/ and its subdirectories.
Dir["#{File.dirname(__FILE__)}/support/**/*.rb"].each {|f| require f}

RSpec.configure do |config|
  config.before(:suite) do
    Authy.api_key = 'bf12974d70818a08199d17d5e2bae630'
  end

  def generate_email
    domain = "@authy.com"
    user = (0...8).map{97.+(rand(25)).chr}.join
    user + domain
  end

  def generate_cellphone
    n = rand(999) + 1000
    "192-967-#{n}"
  end
end
```

Use a dummy API key in the test suite
user
```ruby
$LOAD_PATH.unshift(File.join(File.dirname(__FILE__), '..', 'lib'))
$LOAD_PATH.unshift(File.dirname(__FILE__))

require 'rspec'
require 'authy'
require 'pry'

# Requires supporting files with custom matchers and macros, etc,
# in ./support/ and its subdirectories.
Dir["#{File.dirname(__FILE__)}/support/**/*.rb"].each {|f| require f}

RSpec.configure do |config|
  config.before(:suite) do
    Authy.api_key = 'valid_api_key'
  end

  def generate_email
    domain = "@authy.com"
    user = (0...8).map{97.+(rand(25)).chr}.join
    user + domain
  end

  def generate_cellphone
    n = rand(999) + 1000
    "192-967-#{n}"
  end
end
```
assistant