How to use the iotedgedev.modules.Modules function in iotedgedev

def add(name, template, group_id):
    mod = Modules(envvars, output)
    mod.add(name, template, group_id)

def genconfig(template_file, platform, fail_on_validation_error):
    mod = Modules(envvars, output)
    mod.build_push(template_file, platform, no_build=True, no_push=True, fail_on_validation_error=fail_on_validation_error)

def start_solution(self, manifest_file, default_platform, verbose=True, build=False):
        if build:
            mod = Modules(self.envvars, self.output)
            manifest_file = mod.build(manifest_file, default_platform)

        if not os.path.exists(manifest_file):
            raise FileNotFoundError("Deployment manifest {0} not found. Please build the solution before starting IoT Edge simulator.".format(self.envvars.DEPLOYMENT_CONFIG_FILE_PATH))

        self.output.header("Starting IoT Edge Simulator in Solution Mode")

        cmd = ["iotedgehubdev", "start", "-d", manifest_file]
        if verbose:
            cmd.append("-v")
        self.utility.call_proc(cmd)

def build(ctx, push, do_deploy, template_file, platform):
    mod = Modules(envvars, output)
    mod.build_push(template_file, platform, no_push=not push)

    if do_deploy:
        ctx.invoke(deploy)

def push(ctx, do_deploy, no_build, template_file, platform):
    mod = Modules(envvars, output)
    mod.push(template_file, platform, no_build=no_build)

    if do_deploy:
        ctx.invoke(deploy)