def intersect_sphere_sphere_2d(p_a: 'mathutils.Vector', radius_a: float,
    p_b: 'mathutils.Vector', radius_b: float):
    """Returns 2 points on between intersecting circles. 

    :param p_a: Center of the first circle 
    :type p_a: 'mathutils.Vector'
    :param radius_a: Radius of the first circle 
    :type radius_a: float
    :param p_b: Center of the second circle 
    :type p_b: 'mathutils.Vector'
    :param radius_b: Radius of the second circle 
    :type radius_b: float
    """
    pass
