/**
 * @name perps/perp-rpc-fallback
 * @description Solana RPC fallback for Adrena on-chain reads inside the perps
 * package. The hosted gateway often runs from datacenter IPs that the public
 * mainnet RPC throttles with HTTP 426; reads retried across fallback
 * endpoints keep the tools functional.
 * @module perps/perp-rpc-fallback
 */
import { Connection } from '@solana/web3.js';
import type { SapMcpContext } from '../../core/src/types.js';
/**
 * Run an on-chain read against the context connection, retrying across
 * public RPC fallbacks when the primary endpoint fails.
 * @param context — SAP MCP context.
 * @param operation — Read to execute with each candidate connection.
 * @param label — Error label used when every endpoint fails.
 * @returns The first successful result.
 * @throws Aggregated error when all endpoints fail.
 */
export declare function withPerpsConnectionFallback<T>(context: SapMcpContext, operation: (connection: Connection, rpcUrl: string) => Promise<T>, label?: string): Promise<T>;
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