public function hasRelationshipInput(
        ResourceTransformer $transformer,
        &$input,
        RelationshipField $field,
        Context $context
    ) : bool {
        return $this->hasPropertyInput($transformer, $input, $field, $context);
    }
public function hasRelationshipInput(
        ResourceTransformer $transformer,
        &$input,
        RelationshipField $field,
        Context $context
    ) : bool {
        return $this->hasPropertyInput($transformer, $input, $field, $context);
    }
public function hasRelationshipInput ( ResourceTransformer $ transformer , & $ input , RelationshipField $ field , Context $ context ) : bool { return $ this -> hasPropertyInput ( $ transformer , $ input , $ field , $ context ) ; }
Check if relationship data exists in input.
@param ResourceTransformer $transformer
@param $input
@param RelationshipField $field
@param Context $context
@return bool
Check if relationship data exists in input .