```ruby
module Metasploit
  module Model
    module Search
      # Namespace for search operators
      module Operator

      end
    end
  end
end```

Document interface in namespace docs
user
```ruby
module Metasploit
  module Model
    module Search
      # # Declaring operator classes
      #
      # ## Interface
      #
      # Operators do not need to subclass any specific superclass, but they are expected to define certain methods.
      #
      #     class MyOperator
      #       #
      #       # Instance Methods
      #       #
      #
      #       # @param klass [Class] The klass on which `search_with` was called.
      #       def initialize(attributes={})
      #         # ...
      #       end
      #
      #       # Description of what this operator searches for.
      #       #
      #       # @return [String]
      #       def help
      #         # ...
      #       end
      #
      #       # Name of this operator.  The name of the operator is matched to the string before the ':' in a formatted
      #       # operation.
      #       #
      #       # @return [Symbol]
      #       def name
      #         # ...
      #       end
      #
      #       # Creates a one or more operations based on `formatted_value`.
      #       #
      #       # @return [#operator, Array<#operator>] Operation with this operator as the operation's `operator`.
      #       def operate_on(formatted_value)
      #         # ...
      #       end
      #     end
      #
      # ## Help
      #
      # Instead of having define your own `#help` method for your operator `Class`, you can `include`
      # {Metasploit::Model::Search::Operator::Help}.
      #
      # {include:Metasploit::Model::Search::Operator::Help}
      #
      # ## {Metasploit::Model::Search::Operator::Base}
      #
      # {include:Metasploit::Model::Search::Operator::Base}
      #
      # ## {Metasploit::Model::Search::Operator::Single}
      #
      # {include:Metasploit::Model::Search::Operator::Single}
      module Operator

      end
    end
  end
end```
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