iRule w/classes corrupting class files.

I'm having the same difficulty with embedding a large graphic file into a class. I'm receiving the "Max string size exceeded during update of attribute:data type:class_string_item max:65520" error when creating it as a Data Group or within the bigip.conf file as a file, and have not figured out the format of the class variable when defining this as a string in the bigip.conf. I copied and pasted the contents of my base64-encoded file into the bigip.conf, but it's not happy with the format. Here's a snippet of my attempt at a class definition:

class Image_head {

type string

"image_head.bmp" := "Qk0WGwEAAAAAADYEAAAoAAAABgMAAFwAAAABAAgAAAAAAOAWAQDEDgAAxA4AAAAAAAAAAAAA////APn17wDy7N8A7OLPAOXZvwDfz68A2cWfANK8jwDMsn8AxqlwAL+gYAC5llAAs4xAAK

And here's the resulting error when I do a b verify load:

Reading configuration from /config/bigip.conf.

BIGpipe parsing error (/config/bigip.conf Line 1120):

012e0017:3: The requested item (:= ,) is invalid ( | show | list | help) for 'class ip item'

Any pearls of wisdom as to the format of this class definition?

Thanks in advance.

Joe

By the way, I'm running version 10.2, Build 1789.