Get a list of the last build for each plan identified by the list parameter or by the same plan selection criteria available for getPlanList (not including last build selection criteria). List parameter can include either project qualified plan keys or plan short keys if the project parameter is provided. The last build selected can be modified using the same selection criteria used on the getBuildList action determined by the field parameter. For example, '--field notState=UNKNOWN' is a good choice to get the last completed build and avoid in progress builds.