class Asciidoctor::Callouts

def generate_callout_id list_index, co_index

Returns A unique String id for a callout

co_index - The 1-based Integer index of the callout since the end of the last callout list
list_index - The 1-based Integer index of the callout list within the document

Internal: Generate a unique id for the callout at the specified position 
def generate_callout_id list_index, co_index
  %(CO#{list_index}-#{co_index})
end