# Functions
NewSerializableError serializes one of the above errors into JSON.
# Structs
ErrBadHierarchy represents missing metadata.
ErrBadRoot represents a failure validating the root.
ErrBadSnapshot represents a failure to validate the snapshot.
ErrBadTargets represents a failure to validate a targets (incl delegations).
ErrValidation represents a general validation error.
SerializableError is a struct that can be used to serialize an error as JSON.