(triangles, placed_objects)
return [tri for tri in triangles if not placed_objects.issuperset(
            DiagramGrid._triangle_objects(tri))]
Returns only those triangles whose set of objects is not
        completely included in ``placed_objects``.
Returns only those triangles whose set of objects is not
        completely included in ``placed_objects``.
Returns only those triangles whose set of objects is not completely included in placed_objects .
def _drop_irrelevant_triangles(triangles, placed_objects):
        """
        Returns only those triangles whose set of objects is not
        completely included in ``placed_objects``.
        """
        return [tri for tri in triangles if not placed_objects.issuperset(
            DiagramGrid._triangle_objects(tri))]
def _drop_irrelevant_triangles ( triangles , placed_objects ) : return [ tri for tri in triangles if not placed_objects . issuperset ( DiagramGrid . _triangle_objects ( tri ) ) ]