check	check_that
check_that	check_that
check_that_	check_that
ensure	check_that
ensure_that	check_that
ensure_that_	check_that
inspect	inspect
obs	observations
obs<-	observations
observations	observations
observations<-	observations
observe	observe_if
observe.default	observe_if
observe_if	observe_if
observe_if_	observe_if
observe_if_.data.frame	observe_if
observe_if_.grouped_df	observe_if
observe_if_.tbl_df	observe_if
recheck	reobserve
reensure	reobserve
reobserve	reobserve
View_obs	View_obs
