jinja expression to take all the rec ids found in the search pipeline step

On my last step in a pipeline, i would like it to create a record on a different table about how many records were updated ( ex: {{ a | count }} ), but i also would like to have the list of record ids that were found from the search pipeline step. Does anyone know how to access this list?

my expected output for each run of the pipeline is to create a record with these fields

# of Records updated = 3  using {{ a | count }}

list of records updated = 23; 25; 36 using ????

any help greatly appreciated :) 

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Tim D
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