public Illuminate\Database\Eloquent\Model find( mixed $key
mixed $default = null ) # Find a model in the collection by key.
public load( ) # Load a set of relationships onto the collection.
public Illuminate\Database\Eloquent\Collection add( mixed $item ) # Add an item to the collection.
public boolean contains( mixed $key ) # Determine if a key exists in the collection.
public array modelKeys( ) # Get the array of primary keys
Methods inherited from Illuminate\Support\Collection