# Functions
NewRing return a new `Ring` instance for code.
NewScale return a new `Scale` instance for code.
NewSubfield returns a new `Subfield` instance for code and value.
Parse034 parses a MARC 034 field as defined by https://www.loc.gov/marc/bibliographic/bd034.html in to a `Parsed` instance.
Parse034Coordinate parses an individual coordinate string from a MARC 034 field.
# Structs
type Coord wraps a geographic coordinate defined in a MARC 034 field.
type Parsed encapsulates the result of a MARC 034 field that has been parsed.
type Ring encapsulates the type of ring used in a MARC 034 field.
type Scale encapsulates the type of scale used in a MARC 034 field.
type Subfield encapsulates the different types of subfield used in a MARC 034 field.