claim.RdThis function allows you to "claim" specified columns from a data frame and store them in a global data frame named `.kollection` (or a custom name). If `.kollection` doesn't exist, it's created. If it exists but has a different number of rows, it's reinitialized to match the input data frame's row count.
claim(df, ..., .name = ".kollection")Invisibly returns the original data frame `df`.