import type { ProjectContext } from '../../../project';
import { Task } from '../../../task';
import type { OperationSchema } from '../../build-tool';
import type { FirestorePropKey } from '../properties';
export declare class FirestoreSchemaError extends Error {
    readonly cause?: unknown | undefined;
    readonly _tag: "FirestoreSchemaError";
    constructor(message: string, cause?: unknown | undefined);
}
export declare const GET_COLLECTION_SCHEMA: "get_collection_schema";
export declare const getCollectionSchemaOp: OperationSchema<FirestorePropKey>;
export interface GetCollectionSchemaArgs {
    collection: string;
    sampleSize?: number;
}
export interface FieldSchema {
    types: string[];
    coverage: string;
}
export declare const getCollectionSchema: (ctx: ProjectContext, input: GetCollectionSchemaArgs) => Task<{
    collection: string;
    totalSampled: number;
    sampleStrategy: string;
    fields: Record<string, FieldSchema>;
}, import("../../../project").AccessDeniedError | FirestoreSchemaError>;
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