code: @Override
  	public com.liferay.commerce.product.model.CPDefinition fetchCPDefinitionByReferenceCode(
  		long companyId, String externalReferenceCode) {
  		return _cpDefinitionLocalService.fetchCPDefinitionByReferenceCode(companyId,
  			externalReferenceCode);
  	}
docs: Returns the cp definition with the matching external reference code and company.
  
  @param companyId the primary key of the company
  @param externalReferenceCode the cp definition's external reference code
  @return the matching cp definition, or <code>null</code> if a matching cp definition could not be found