|  line  | 
 count  | 
 pod  | 
 subroutine  | 
| 
3
 | 
 1  | 
 n/a  | 
 BEGIN  | 
| 
4
 | 
 1  | 
 n/a  | 
 BEGIN  | 
| 
5
 | 
 1  | 
 n/a  | 
 BEGIN  | 
| 
15
 | 
 1  | 
 n/a  | 
 BEGIN  | 
| 
16
 | 
 1  | 
 n/a  | 
 BEGIN  | 
| 
17
 | 
 1  | 
 n/a  | 
 BEGIN  | 
| 
18
 | 
 1  | 
 n/a  | 
 BEGIN  | 
| 
19
 | 
 1  | 
 n/a  | 
 BEGIN  | 
| 
20
 | 
 1  | 
 n/a  | 
 BEGIN  | 
| 
84
 | 
 3  | 
 Yes  | 
 get_delta_for_strike  | 
| 
127
 | 
 261  | 
 Yes  | 
 get_strike_for_spot_delta  | 
| 
156
 | 
 130  | 
 n/a  | 
 _calculate_strike_for_vanilla_put  | 
| 
194
 | 
 128  | 
 n/a  | 
 _calculate_strike_for_vanilla_call  | 
| 
259
 | 
 33  | 
 Yes  | 
 get_ATM_strike_for_spot_delta  | 
| 
288
 | 
 2  | 
 Yes  | 
 get_moneyness_for_strike  | 
| 
310
 | 
 2  | 
 Yes  | 
 get_strike_for_moneyness  | 
| 
355
 | 
 13  | 
 Yes  | 
 get_2vol_butterfly  | 
| 
418
 | 
 3  | 
 Yes  | 
 get_1vol_butterfly  | 
| 
451
 | 
 54  | 
 n/a  | 
 _strangle_difference  | 
| 
533
 | 
 108  | 
 n/a  | 
 _smile_approximation  | 
| 
579
 | 
 0  | 
 n/a  | 
 _implied_vol  |