estban_by_municipality
                        Aggregate ESTBAN to the municipality
estban_cache_dir        Resolve the estbanr cache directory
estban_clean_names      Normalize ESTBAN column names to snake_case
estban_columns          ESTBAN column layout and account dictionary
estban_download         Download one ESTBAN month
estban_fetch            Download and read a range of months
estban_flag_nonreport   Flag institution-months that were not reported
estban_impute_nonreport
                        Impute non-reported institution-months
estban_read             Read an ESTBAN CSV file
estban_url              Candidate download URLs for one ESTBAN month
