src/Repositories/CatalogAttributeRepository.php
public function init()
    {

        // initialize the prepared statements
        $this->catalogAttributeStmt =
            $this->getConnection()->prepare($this->loadStatement(SqlStatementKeys::CATALOG_ATTRIBUTE));
    }
public function init()
    {

        // initialize the prepared statements
        $this->catalogAttributeStmt =
            $this->getConnection()->prepare($this->loadStatement(SqlStatementKeys::CATALOG_ATTRIBUTE));
    }
Initializes the repository's prepared statements.

@return void