How to use the installer.bootstrap.Toolbox.download_to_file function in installer

returncode = 1
                Toolbox.set_git_repository_config_to_rebase(
                    os.path.join(destination, ".git", "config")
                )
                if returncode:
                    return returncode  # no point trying to continue on error
                # Show the hash for the checked out commit for debugging purposes, ignore any failures.
                ShellCommand(
                    command=["git", "rev-parse", "HEAD"], workdir=destination
                ).run()
                return returncode
            filename = "%s-%s" % (module, urlparse(source_candidate)[2].split("/")[-1])
            filename = os.path.join(destpath, filename)
            if verbose:
                print("===== Downloading %s: " % source_candidate, end=" ")
            Toolbox.download_to_file(source_candidate, filename)
            Toolbox.unzip(filename, destination, trim_directory=1, verbose=verbose)
            return

        error = (
            "Cannot satisfy git dependency for module %s: None of the sources are available."
            % module
        )
        if not git_available:
            print(error)
            error = "A git installation has not been found."
        raise Exception(error)

"""Download and install Miniconda3"""

        os_names = {"Darwin": "MacOSX", "Linux": "Linux", "Windows": "Windows"}
        filename = "Miniconda3-latest-{platform}-x86_64".format(
            platform=os_names[self.system]
        )
        if self.system == "Windows":
            filename += ".exe"
        else:
            filename += ".sh"
        url_base = "https://repo.anaconda.com/miniconda/"
        url = url_base + filename
        filename = os.path.join(location, filename)

        print("Downloading {url}:".format(url=url), end=" ")
        result = Toolbox.download_to_file(url, filename)
        if result in (0, -1):
            sys.exit("Miniconda download failed")

        # run the installer
        if self.system == "Windows":
            command = [
                filename,
                "/InstallationType=JustMe",
                "/RegisterPython=0",
                "/AddToPath=0",
                "/S",
                "/D=" + location,
            ]
        else:
            command = ["/bin/sh", filename, "-b", "-u", "-p", location]

def _download():
            for _url in url:
                for retry in (3, 3, 0):
                    print("===== Downloading %s: " % _url, end=" ")
                    try:
                        Toolbox().download_to_file(_url, to_file)
                        return
                    except Exception as e:
                        print("Download failed with", e)
                        if retry:
                            print("Retrying in %d seconds" % retry)
                            time.sleep(retry)
            raise RuntimeError("Could not download " + to_file)

print(
            "Completed {text}:\n  {prefix}".format(text=text_messages[1], prefix=prefix)
        )
        with open(os.path.join(prefix, ".condarc"), "w") as fh:
            fh.write(
                """
channels:
  - conda-forge
"""
            )

        # on Windows, also download the Visual C++ 2008 Redistributable
        # use the same version as conda-forge
        # https://github.com/conda-forge/vs2008_runtime-feedstock
        if self.system == "Windows":
            Toolbox.download_to_file(
                "https://download.microsoft.com/download/5/D/8/5D8C65CB-C849-4025-8E95-C3966CAFD8AE/vcredist_x64.exe",
                os.path.join(prefix, "vcredist_x64.exe"),
            )

        # check that environment file is updated
        self.environments = self.update_environments()
        if prefix not in self.environments:
            raise RuntimeError(
                """
The newly installed environment cannot be found in