export declare class ValidationError extends Error {
    constructor(message: string);
}
export declare function validateSubnetName(name: string): string | true;
export declare function validateVlanId(input: string): string | true;
export declare function validateVlanIdUnique(vlanId: number, existingVlans: number[], excludeIndex?: number): string | true;
export declare function validateDeviceCount(input: string): string | true;
export declare function validateIpAddress(ip: string): string | true;
export declare function isValidIpAddress(ip: string): boolean;
export declare function validatePlanName(name: string): string | true;
export declare function validateSubnetDescription(description: string): string | true;
export interface ManualNetworkValidationResult {
    valid: boolean;
    errors: string[];
    warnings: string[];
}
export declare function validateManualNetworkAddress(networkAddress: string, cidrPrefix: number, baseNetwork: string, existingSubnets: Array<{
    id: string;
    subnetInfo?: {
        networkAddress?: string;
        cidrPrefix: number;
    };
}>, currentSubnetId: string): ManualNetworkValidationResult;