How to use the jovian.utils.credentials.read_creds function in jovian

def _attach_files(paths, gist_slug, version, output=False, exclude_files=None):
    """Helper functions to attach files & folders to a commit"""
    config = read_creds().get("DEFAULT_CONFIG", {})

    whitelist = config.get("EXTENSION_WHITELIST")
    upload_wd = config.get("UPLOAD_WORKING_DIRECTORY", False)

    if not isinstance(whitelist, list):
        whitelist = DEFAULT_EXTENSION_WHITELIST

    if not paths:
        if output or not upload_wd:
            return

        paths = [
            f
            for f in glob.glob('**/*', recursive=True)
            if get_file_extension(f) in whitelist
        ]

def _capture_environment(environment, gist_slug, version):
    """Capture the python environment and attach it to the commit"""
    if environment is not None:
        # Check credentials if environment config exists
        creds = read_creds()
        if 'DEFAULT_CONFIG' in creds and 'environment' in creds['DEFAULT_CONFIG']:
            environment_config = creds['DEFAULT_CONFIG']['environment']
            if not environment_config:
                # Disable environment capture
                return
            if environment == 'auto' and (environment_config == 'conda' or environment_config == 'pip'):
                environment = environment_config

        log('Capturing environment..')
        captured = False

        if environment == 'auto' or environment == 'conda':
            # Capture conda environment
            try:
                upload_conda_env(gist_slug, version)
                captured = True