[ 'ListAssetContracts' => [ 'input_token' => 'nextToken', 'output_token' => 'nextToken', 'limit_key' => 'maxResults', 'result_key' => 'contracts', ], 'ListTokenBalances' => [ 'input_token' => 'nextToken', 'output_token' => 'nextToken', 'limit_key' => 'maxResults', 'result_key' => 'tokenBalances', ], 'ListTransactionEvents' => [ 'input_token' => 'nextToken', 'output_token' => 'nextToken', 'limit_key' => 'maxResults', 'result_key' => 'events', ], 'ListTransactions' => [ 'input_token' => 'nextToken', 'output_token' => 'nextToken', 'limit_key' => 'maxResults', 'result_key' => 'transactions', ], ],];