import { BackBoneSequenceNode, SubChainNode } from "../../../domain/entities";
import { ITwoStrandedChainItem } from "../../../domain/entities/monomer-chains/ChainsCollection";
export declare function isNodeRestrictedForHydrogenBondCreation(node: SubChainNode | BackBoneSequenceNode | undefined): boolean;
export declare function isTwoStrandedNodeRestrictedForHydrogenBondCreation(twoStrandedNode?: ITwoStrandedChainItem): boolean;