# Functions
NewHierarchicalLabelReader returns a new reader.
NewUniqueReader configures the reader to return values from the given column indexes.
# Structs
HierarchicalLabelReader reads a code / label pair from a V4 file and parses hierarchy information from the label.
UniqueReader reads unique values from a column in a CSV file.
# Interfaces
DimensionOptionReader reads a V4 file and provides unique dimension options.