augur-output.js

var tx = {
  method: 'createEvent',
  signature: 'isiiii',
  params: 
   [ '0x38a820692912b5f7a3bfefc2a1d4826e1da6beaed5fac6de3d22b18132133991',
     'my event',
     250000,
     1,
     2,
     2 ]
};

Augur.abi_data(tx)

'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'

new_abi_example.py

from serpent import get_prefix
from ethereum import abi

types = ['int256', 'bytes', 'int256', 'int256', 'int256', 'int256']

data = [25626573518548684804298585143622532835525129559264173902695823423530259921297L,
        'my event',
        250000,
        1,
        2,
        2]

hex(get_prefix("createEvent", "isiiii")) + abi.encode_abi(types, params).encode('hex')

'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'