This passive tame is really easy! No trap required.

1: Get a pteradon/argyle

2: Get fertile eggs

3: Fly above the titanoboa high enough so it won't get aggro at you

4: Drop the eggs from you INVENTORY, not your mount, or else it won't work.

5: After it is tamed, pick it up with your argy/ptera, and get the heck outta there!

6: Name it danger noodle.

7: Enjoy your new titanoboa