# Assert valid 'first' time imputation
time_imp_first <- admiral:::assert_time_imputation("first", "Y")
print(time_imp_first)
# Assert valid 'last' time imputation
time_imp_last <- admiral:::assert_time_imputation("last", "Y")
print(time_imp_last)
# Assert valid custom time imputation "12:34:56"
time_imp_custom <- admiral:::assert_time_imputation("12:34:56", "Y")
print(time_imp_custom)
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