| 1 | import { GraphQLRequest, RequestHandler } from './types';
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| 2 | import { ApolloLink } from './link';
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| 3 | import Observable from 'zen-observable-ts';
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| 4 | export declare function validateLink(link: ApolloLink): ApolloLink;
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| 5 | export declare function validateOperation(operation: GraphQLRequest): GraphQLRequest;
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| 6 | export declare class LinkError extends Error {
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| 7 | link: ApolloLink;
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| 8 | constructor(message?: string, link?: ApolloLink);
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| 9 | }
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| 10 | export declare function toLink(link: ApolloLink | RequestHandler): ApolloLink;
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| 11 | export declare function isTerminating(link: ApolloLink): boolean;
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| 12 | export declare function makePromise<R>(observable: Observable<R>): Promise<R>;
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