import { ForkName, ForkPostBellatrix, ForkPreGloas, ForkSeq } from "@lodestar/params";
import { BeaconBlock, BeaconBlockBody, BlindedBeaconBlock, BlindedBeaconBlockBody, ExecutionPayload, ExecutionPayloadHeader, capella } from "@lodestar/types";
import { BeaconStateAllForks, BeaconStateCapella, BeaconStateExecutions, CachedBeaconStateAllForks, CachedBeaconStateExecutions } from "../types.js";
/**
 * Execution enabled = merge is done.
 * When (A) state has execution data OR (B) block has execution data
 */
export declare function isExecutionEnabled(state: BeaconStateExecutions, block: BeaconBlock | BlindedBeaconBlock): boolean;
/**
 * Merge is complete when the state includes execution layer data:
 * state.latestExecutionPayloadHeader NOT EMPTY or state is post-capella
 */
export declare function isMergeTransitionComplete(state: BeaconStateExecutions): boolean;
/** Type guard for bellatrix.BeaconState */
export declare function isExecutionStateType(state: BeaconStateAllForks): state is BeaconStateExecutions;
/** Type guard for capella.BeaconState */
export declare function isCapellaStateType(state: BeaconStateAllForks): state is BeaconStateCapella;
/** Type guard for bellatrix.CachedBeaconState */
export declare function isExecutionCachedStateType(state: CachedBeaconStateAllForks): state is CachedBeaconStateExecutions;
/** Type guard for ExecutionBlockBody */
export declare function isExecutionBlockBodyType(blockBody: BeaconBlockBody): blockBody is BeaconBlockBody<ForkPostBellatrix & ForkPreGloas>;
export declare function getFullOrBlindedPayload(block: BeaconBlock): ExecutionPayload | ExecutionPayloadHeader;
export declare function getFullOrBlindedPayloadFromBody(body: BeaconBlockBody | BlindedBeaconBlockBody): ExecutionPayload | ExecutionPayloadHeader;
export declare function isCapellaPayload(payload: ExecutionPayload | ExecutionPayloadHeader): payload is ExecutionPayload<ForkName.capella> | ExecutionPayloadHeader<ForkName.capella>;
export declare function isCapellaPayloadHeader(payload: capella.FullOrBlindedExecutionPayload): payload is capella.ExecutionPayloadHeader;
export declare function executionPayloadToPayloadHeader(fork: ForkSeq, payload: ExecutionPayload): ExecutionPayloadHeader;
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