/**
 * @fileoverview Get external database cross-references for a PubChem compound.
 * @module mcp-server/tools/definitions/get-compound-xrefs
 */
import { z } from '@cyanheads/mcp-ts-core';
export declare const getCompoundXrefs: import("@cyanheads/mcp-ts-core").ToolDefinition<z.ZodObject<{
    cid: z.ZodNumber;
    xrefTypes: z.ZodArray<z.ZodEnum<{
        [x: string]: string;
    }>>;
    offset: z.ZodDefault<z.ZodNumber>;
    maxPerType: z.ZodDefault<z.ZodNumber>;
}, z.core.$strip>, z.ZodObject<{
    cid: z.ZodNumber;
    xrefs: z.ZodArray<z.ZodObject<{
        type: z.ZodString;
        ids: z.ZodArray<z.ZodUnion<readonly [z.ZodString, z.ZodNumber]>>;
        totalAvailable: z.ZodNumber;
        truncated: z.ZodBoolean;
    }, z.core.$strip>>;
}, z.core.$strip>, undefined, {
    readonly offset: z.ZodNumber;
    readonly truncated: z.ZodBoolean;
    readonly nextOffset: z.ZodOptional<z.ZodNumber>;
    readonly notice: z.ZodOptional<z.ZodString>;
}>;
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