Add a new command to the blueprint.

        :param name: The command name
        :type name: str

        :param parameters: The command parameters
        :type parameters: dict

        :rtype: Fluent

def _add_command(self, name, **parameters):
        """
        Add a new command to the blueprint.

        :param name: The command name
        :type name: str

        :param parameters: The command parameters
        :type parameters: dict

        :rtype: Fluent
        """
        command = self._create_command(name, **parameters)
        self._commands.append(command)

        return command