/**
 * Lazy SDK loader — avoids pulling heavy snarkjs/crypto deps at module load.
 *
 * The @bolyra/sdk dist may not include all modules (e.g., offchain was added
 * in v0.3). This loader uses require() with a fallback for missing exports.
 */
import type { HumanIdentity, AgentCredential, HandshakeResult, Proof, BolyraConfig } from '@bolyra/sdk';
/** Subset of SDK functions used by the payment protocol adapters */
export interface BolyraSDK {
    proveHandshake(human: HumanIdentity, agent: AgentCredential, options?: {
        scope?: bigint;
        nonce?: bigint;
        config?: BolyraConfig;
    }): Promise<{
        humanProof: Proof;
        agentProof: Proof;
        nonce: bigint;
    }>;
    verifyHandshake(humanProof: Proof, agentProof: Proof, nonce: bigint, config?: BolyraConfig): Promise<HandshakeResult>;
    verifyHandshakeOffchain(humanProof: Proof, agentProof: Proof, nonce: bigint, config?: BolyraConfig): Promise<HandshakeResult>;
}
/**
 * Lazily load the Bolyra SDK, resolving both core and offchain modules.
 * Caches the result for subsequent calls.
 */
export declare function loadSDK(): BolyraSDK;