text: Test the retrieverspreedly_doc_retriever.get_relevant_documents("CRC")    [Document(page_content='installment_grace_period_duration\nreference_data_code\ninvoice_number\ntax_management_indicator\noriginal_amount\ninvoice_amount\nvat_tax_rate\nmobile_remote_payment_type\ngratuity_amount\nmdd_field_1\nmdd_field_2\nmdd_field_3\nmdd_field_4\nmdd_field_5\nmdd_field_6\nmdd_field_7\nmdd_field_8\nmdd_field_9\nmdd_field_10\nmdd_field_11\nmdd_field_12\nmdd_field_13\nmdd_field_14\nmdd_field_15\nmdd_field_16\nmdd_field_17\nmdd_field_18\nmdd_field_19\nmdd_field_20\nsupported_countries: US\nAE\nBR\nCA\nCN\nDK\nFI\nFR\nDE\nIN\nJP\nMX\nNO\nSE\nGB\nSG\nLB\nPK\nsupported_cardtypes: visa\nmaster\namerican_express\ndiscover\ndiners_club\njcb\ndankort\nmaestro\nelo\nregions: asia_pacific\neurope\nlatin_america\nnorth_america\nhomepage: http://www.cybersource.com\ndisplay_api_url: https://ics2wsa.ic3.com/commerce/1.x/transactionProcessor\ncompany_name: CyberSource', metadata={'source': 'https://core.spreedly.com/v1/gateways_options.json'}),