le object, optional
        DATA_PARAMETER_PLACEHOLDER
    broken_streamlines : boolean, default: True
        If False, forces streamlines to continue until they
        leave the plot domain.  If True, they may be terminated if they
        come too close to another streamline.

    Returns
    -------
    StreamplotSet
        Container object with attributes

        - ``lines``: `.LineCollection` of streamlines

        - ``arrows``: `.PatchCollection` containing `.FancyArrowPatch`
          objects representing the arrows half-way along streamlines.

        This container will probably change in the future to allow changes
        to the colormap, alpha, etc. for both lines and arrows, but these
        changes should be backward compatible.
    Nzlines.linewidthé