Model firstOrNew(array $attributes)

string getHasCompareKey() Get the key for comparing against the parent

Builder getRelationQueryForSelfRelation(

Builder getBaseQuery()

void addConstraints() Set the base constraints on the relation query.

MorphOne class MorphOne extends

Model create(array $attributes)

static Collection|

BelongsTo belongsTo(string $related

void __unset(string $key) Unset an attribute on the model.