These are the functions which can be called on a minecraft:bred_animals criteria 
trigger.



setParentType:
    Arguments:
        String
    Usage:
        entity type
    Notes:
        Sets the parent entity type.

getChildData:
    Notes:
        Returns the EntityData object for the child so functions can be called on it.

getPartnerData:
    Notes:
        Returns the EntityData object for the partner so functions can be called on it.

setChildType:
    Arguments:
        String
    Usage:
        entity type
    Notes:
        Sets the child entity type.

setPartnerType:
    Arguments:
        String
    Usage:
        entity type
    Notes:
        Sets the partner entity type.

getParentData:
    Notes:
        Returns the EntityData object for the parent so functions can be called on it.

setCount:
    Arguments:
        int
    Usage:
        count
    Notes:
        Sets the number of times this criteria must be completed before it counts towards advancement progress.