tw <- grails3r::read_from_s3("s3://grail-twu/summitstudy-ldct-randomization-schedule.csv",
                       read_func = read.csv,
                       s3_cp_args=list(ticket="tickets/eng/dev/aws"))

hc <- grails3r::read_from_s3("s3://grail-twu/summitstudy-ldct-randomization-schedule_hc.csv",
                             read_func = read.csv,
                             s3_cp_args=list(ticket="tickets/eng/dev/aws"))

tw$ldct_regimen == hc$treatment