ErrMultipleFound is returned when the result set from the database holds more than one error, inside a call that requires exactly one.

ErrNotFound is returned when the result set from the database held 0 records.

ErrAttemptsExceededLimit is returned when the number of attempts has reaced the maximum permitted.

ErrNonRetriable is returned when the wrapped error type is not retriable.

CodeList defines functions to retrieve code list and code nodes.

Dimension defines functions to create dimension nodes.

Driver is the base interface any driver implementation must satisfy.

Hierarchy defines functions to create and retrieve generic and instance hierarchy nodes.

Instance defines functions to create, update and retrieve details about instances.

Observation defines functions to create and retrieve observation nodes.