schema:          AS-BLOCK-SCHEMA
type-name:       as-block
key:             as-block mandatory single primary lookup
key:             descr optional multiple
key:             remarks optional multiple
key:             org optional multiple inverse organisation
key:             notify optional multiple inverse person
key:             mnt-by mandatory single inverse mntner
key:             mnt-lower optional multiple inverse mntner
key:             changed mandatory multiple
key:             source mandatory single
