Interface Salient\Contract\Sync\SyncEntityLinkType

"@type" and "@id"

<?php
[
  '@type' => 'prefix:Foo',
  '@id' => 42,
]

"@id" only (identifier type not preserved)

<?php
[
  '@id' => 'prefix:Foo/42',
]

"@type", "@id", "@name" and "@description" (empty values removed)

<?php
[
  '@type' => 'prefix:Foo',
  '@id' => 42,
  '@name' => 'Foo',
]