What is the arrow on?
The arrow is on the pole.
     src        edge_attr  dst
0      0  to the right of   32
1      0   to the left of   20
2      0   to the left of   16
3      1  to the right of   18
4      1   to the left of   19
..   ...              ...  ...
143   37   to the left of   12
144   37   to the left of   20
145   37  to the right of   25
146   37   to the left of   11
147   37  to the right of   29

[148 rows x 3 columns]