def get_segment(neuron, section_id, segment_id):
sec = neuron.sections[section_id]<EOL>return sec.points[segment_id:segment_id + <NUM_LIT:2>][:, COLS.XYZR]<EOL>
Get a segment given a section and segment id

    Returns:
        array of two [x, y, z, r] points defining segment