module Mixlib::CLI::ClassMethods

def banner(bstring = nil)

@banner:: The current banner
=== Returns

bstring:: The string to set the banner to
=== Parameters

Usage: #{0} (options)
Change the banner. Defaults to: 
def banner(bstring = nil)
  if bstring
    @banner = bstring
  else
    @banner ||= "Usage: #{$0} (options)"
    @banner
  end
end

def option(name, args)

true:: Always returns true.
=== Returns
args:: A hash of arguments for the option, specifying how it should be parsed.
name:: The name of the option to add
=== Parameters

Add a command line option. 
def option(name, args)
  @options ||= {}
  raise(ArgumentError, "Option name must be a symbol") unless name.kind_of?(Symbol)
  @options[name.to_sym] = args
end

def options

@options:: The current options hash.
=== Returns

Get the hash of current options. 
def options
  @options ||= {}
  @options
end

def options=(val)

@options:: The current options hash.
=== Returns

val:: The hash to set the options to
=== Parameters

Set the current options hash 
def options=(val)
  raise(ArgumentError, "Options must recieve a hash") unless val.kind_of?(Hash)
  @options = val
end

def use_separate_default_options(true_or_false)

mixlib-cli DSL will be stored in a separate Hash
When this setting is set to +true+, default values supplied to the 
def use_separate_default_options(true_or_false)
  @separate_default_options = true_or_false
end

def use_separate_defaults? 

def use_separate_defaults?
  @separate_default_options ||= false
end