def METHOD_NAME(s: str, cls: None = None,
          vartype: typing.Optional[Vartype] = None) -> BinaryQuadraticModel:
    """Load a binary quadratic model from a COOrdinate-formatted string.
    Args:
        s: String containing a COO-formatted binary quadratic model.
        cls: Deprecated. Does nothing.
        vartype: The valid variable types for binary quadratic models, is
          one of:
            * :class:`~dimod.Vartype.SPIN`, ``'SPIN'``, ``{-1, +1}``
            * :class:`~dimod.Vartype.BINARY`, ``'BINARY'``, ``{0, 1}``
    .. deprecated:: 0.10.15
        The ``cls`` keyword will be removed in dimod 0.12.0. It currently does
        nothing.
    """
    if cls is not None:
        warnings.warn("cls keyword argument is deprecated since 0.10.15 and will "
                      "be removed in dimod 0.11. Does nothing.", DeprecationWarning,
                      stacklevel=2)
    return load(s.split('\n'), vartype=vartype)