ElementKeys returns a map of section name to element key for each section.

OverrideConfig applies all given overrides and returns a map of all configuration sections, even if they were not overridden.

Element provides access to the underlying value or a map of redacted values.

Override specifies what configuration values should be overridden and how.

Initer set defaults on the receiving object.

Stringer is a type that can provide a string value of itself.

Validator is a type that can validate itself.

Section is a list of Elements.