import { LogInstance } from 'larvitutils';
export type DataWriterOptions = {
    log?: LogInstance;
    db: any;
};
export declare class DataWriter {
    private lUtils;
    private helpers;
    private log;
    private db;
    constructor(options: DataWriterOptions);
    runDbMigrations(scriptPath?: string): Promise<void>;
    addUserDataFields(userUuid: string, fields: Record<string, string | string[]>): Promise<void>;
    addUserField(name: string): Promise<void>;
    create(user: {
        uuid: string;
        username: string;
        password: string;
        fields: Record<string, string | string[]>;
    }): Promise<void>;
    replaceFields(userUuid: string, fields: Record<string, string | string[]> | null): Promise<void>;
    rmUser(userUuid: string): Promise<void>;
    rmUserField(userUuid: string, fieldName: string): Promise<void>;
    setPassword(userUuid: string, password: string): Promise<void>;
    setInactive(userUuid: string, inactive: boolean): Promise<void>;
    setUsername(userUuid: string, username: string): Promise<void>;
}
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