def invoke(self, command, args):
        try:
            function = self.commands[command]
        except KeyError as e:
            raise CommandError('unknown command: %s' % e)
        else:
            return function(**args)

    # List of commands installed
main pipeline build and push process
dataset/ETHPy150Open miracle2k/webassets/src/webassets/script.py/CommandLineEnvironment.invoke--crossover with--dataset/ETHPy150Open CountZer0/PipelineConstructionSet/python/common/build/buildPipeline.py/PipelineBuild.buildPCSPipeline