How to use the spython.main.Client.build function in spython

# Add environment to the layers
    envtar = self._get_environment_tar()
    layers = [envtar] + layers

    # Create singularity image from an empty folder
    for layer in layers:
        bot.info("Exploding %s" % layer)
        result = extract_tar(layer, sandbox, handle_whiteout=True)
        if result["return_code"] != 0:
            bot.exit(result["message"])

    sudo = kwargs.get("sudo", False)

    # Build from a sandbox (recipe) into the image_file (squashfs)
    image_file = Singularity.build(image=file_name, recipe=sandbox, sudo=sudo)

    # Fall back to using Singularity
    if image_file is None:
        bot.info("Downloading with native Singularity, please wait...")
        image = file_name.replace("aws://", "docker://")
        image_file = Singularity.pull(image, pull_folder=sandbox)

    # Save to local storage
    if save is True:

        # Did we get the manifests?
        if hasattr(self, "manifest"):
            manifest = self.manifest

        container = self.add(
            image_path=image_file, image_uri=names["uri"], metadata=manifest, url=url

# Add environment to the layers
    envtar = self._get_environment_tar()
    layers = [envtar] + layers

    # Create singularity image from an empty folder
    for layer in layers:
        bot.info("Exploding %s" % layer)
        result = extract_tar(layer, sandbox, handle_whiteout=True)
        if result["return_code"] != 0:
            bot.exit(result["message"])

    sudo = kwargs.get("sudo", False)

    # Build from a sandbox (recipe) into the image_file (squashfs)
    image_file = Singularity.build(image=file_name, recipe=sandbox, sudo=sudo)

    # Fall back to using Singularity
    if image_file is None:
        bot.info("Downloading with native Singularity, please wait...")
        image = file_name.replace("docker://", uri)
        image_file = Singularity.pull(image, pull_folder=sandbox)

    # Save to local storage
    if save is True:

        # Did we get the manifests?
        manifests = {}
        if hasattr(self, "manifests"):
            manifests = self.manifests

        container = self.add(