    # File lib/fog/ibm/requests/compute/create_key.rb, line 37
            def create_key(name, public_key=nil)
              response = Excon::Response.new
              response.status = 200
              attributes  = {
                "keyName"           => name,
                "lastModifiedTime"  => Fog::IBM::Mock.launch_time,
                "default"           => false,
                "instanceIds"       => [],
              }
              if public_key.nil?
                private_key   = Fog::IBM::Mock.key_material
                public_key    = private_key.public_key
                response.body = attributes.merge("keyMaterial" => private_key.to_s)
              else
                response.body = { 'success' => true }
              end
              self.data[:keys][name] = attributes.merge("keyMaterial" => public_key.to_s)
              self.data[:private_keys][name] = attributes.merge("keyMaterial" => private_key.to_s)
              response
            end