src/Laravel/StorageStructure.php
public function blockImageExist($blockName, $fieldName)
    {
        $fields = $this->getBlockFieldsFlat($blockName);

        return in_array($fieldName, $fields);
    }
public function blockImageExist($blockName, $fieldName)
    {
        $fields = $this->getBlockFieldsFlat($blockName);

        return in_array($fieldName, $fields);
    }
@param string $blockName

@param string $fieldName

@return bool