import { DataTypeConfig } from '@terascope/types';
type ConcatStrType = string | undefined | ((string | undefined)[]);
export declare function concatUniqueStrings(...values: ConcatStrType[]): string[];
export declare function joinStrings(...values: ConcatStrType[]): string;
export declare function validateDataTypeConfig(config: DataTypeConfig): DataTypeConfig;
export declare function validateField(field: unknown): boolean;
export {};
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