import { ColumnTypeEnum } from '@sage-bionetworks/synapse-types';
import { ZodType } from 'zod';
/**
 * Returns a validator for a ColumnModel's `defaultValue` field.
 * This validator will transform the field to match the correct type of defaultValue, which is an optional string.
 * @param columnType the columnType of the ColumnModel
 */
export declare function getDefaultValueValidator(columnType: ColumnTypeEnum): ZodType<string | undefined>;
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