anchor.diff:       -H 'X-Killbill-CreatedBy: creator' \
        "http://127.0.0.1:8080/1.0/kb/directPayments/078a4500-d15e-11e3-9c1a-0800200c9a66"
   ----
  +
  +Notes:
  +
  +* You can specify in the body an *externalKey* string (represents a unique identifier in an external system)
   
   ==== Credit
   
  
positive.code: 
  * For multi-steps authorization (e.g. 3DS), you can specify a *directPaymentId* field in the body for subsequent calls
  * You can specify another payment method (other than the default one) via the *kbPaymentMethodId* query parameter
  
  ==== Capture
  
  
negative.code: Notes:
  
  * You can call this endpoint multiple times for partial captures (all of these captures will share the same direct payment id)
  * You can specify in the body an *externalKey* string (represents a unique identifier in an external system)
  
  ==== Purchase
  
  