To use cdispass: Add its location to your load_paths and require it.
And then you can use
M-x dispass or you could bind
dispass-and-submit to some key, like:
define_key(content_buffer_text_keymap, "C-c d", "dispass-and-submit");
Which would cause
C-c d to call the
dispass command, insert the
result in the current focused element and then submit the form in
which the element is placed.