[.lg_df                 Subset an 'lg_df', preserving lineage
                        attributes
lg_derive               Derive new variables with documented derivation
lg_disposition          Generate a subject disposition summary
lg_end                  End a lineager provenance session
lg_exclusions           Retrieve the exclusion registry
lg_filter               Filter a tagged dataset with mandatory
                        exclusion documentation
lg_history              Retrieve the operation history recorded on a
                        tagged object
lg_id                   Retrieve lineage IDs from a tagged dataset
lg_join                 Join two tagged datasets with lineage tracking
lg_lineage              Build a pipeline lineage graph from the active
                        session
lg_operations           Retrieve the operation log as a data frame
lg_plot                 Render a lineage graph
lg_population           Document and apply a population flag
lg_report               Generate a CDISC Reviewer's Guide-aligned
                        provenance report
lg_spec                 Document an SDTM-to-ADaM variable derivation
lg_start                Start a lineager provenance session
lg_tag                  Tag a dataset to begin lineage tracking
lg_trace                Trace a subject's complete lineage journey
lineager-package        lineager: Row-Level Data Provenance and
                        Exclusion Tracking
