code: def get_columns(self):
      return [
          "VendorRef_value",
          "VendorRef_name",
          "PayType",
          "CreditCardPayment_CCAccountRef_value",
          "CreditCardPayment_CCAccountRef_name",
          "CheckPayment_BankAccountRef_value",
          "CheckPayment_BankAccountRef_name",
          "TotalAmt",
          "Id",
          "SyncToken",
          "MetaData_CreateTime",
          "MetaData_LastUpdatedTime",
          "DocNumber",
          "TxnDate",
          "CurrencyRef_value",
          "CurrencyRef_name",
          "Line_0_Amount",
          "Line_0_LinkedTxn_0_TxnId",
          "Line_0_LinkedTxn_0_TxnType",
          "domain",
          "sparse",
      ]
  
imports: import pandas
  from mindsdb.integrations.libs.api_handler import APITable
  from mindsdb_sql.parser import ast
  from mindsdb.integrations.utilities.sql_utils import extract_comparison_conditions
label_desc: Use image node_id 3 for calling the BillPaymentsTable obj's underlying member method code with example usage: obj.get_columns() and returns: list