(key: _ReferenceKey)
return '.'.join(map(str, key))
Return the key in dot-separated string form.

    :param _ReferenceKey key: The key to stringify.
Return the key in dot-separated string form.
Return the key in dot - separated string form .
def dot_separated(key: _ReferenceKey) -> str:
    """Return the key in dot-separated string form.

    :param _ReferenceKey key: The key to stringify.
    """
    return '.'.join(map(str, key))
def dot_separated ( key : _ReferenceKey ) -> str : return '.' . join ( map ( str , key ) )