/**
 * Branded Types for Type-Safe Identifiers
 *
 * Provides compile-time safety by creating distinct types for strings/numbers
 * that represent different concepts (e.g., model names vs provider IDs).
 */
declare const __brand: unique symbol;
/**
 * Creates a branded type from a base type
 */
type Brand<K, T> = K & {
    readonly [__brand]: T;
};
/** A validated model name identifier */
export type ModelName = Brand<string, 'ModelName'>;
/** A token count (always non-negative) */
export type TokenCount = Brand<number, 'TokenCount'>;
/** A provider identifier */
export type ProviderID = Brand<string, 'ProviderID'>;
/** A prompt template name */
export type PromptName = Brand<string, 'PromptName'>;
/** Milliseconds duration */
export type Milliseconds = Brand<number, 'Milliseconds'>;
/**
 * Create a type-safe model name
 */
export declare function modelName(name: string): ModelName;
/**
 * Create a type-safe token count
 */
export declare function tokenCount(count: number): TokenCount;
/**
 * Create a type-safe provider ID
 */
export declare function providerID(id: string): ProviderID;
/**
 * Create a type-safe prompt name
 */
export declare function promptName(name: string): PromptName;
/**
 * Create a type-safe milliseconds value
 */
export declare function milliseconds(ms: number): Milliseconds;
/**
 * Check if a value is a valid model name (string check only, no branding)
 */
export declare function isValidModelName(value: unknown): value is string;
/**
 * Check if a value is a valid token count
 */
export declare function isValidTokenCount(value: unknown): value is number;
export {};
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