export interface SchemaIssue {
    readonly path: string;
    readonly message: string;
}
export interface StateSchema<Value> {
    readonly version: number;
    check(value: unknown): value is Value;
    issues(value: unknown): readonly SchemaIssue[];
    assert(value: unknown): asserts value is Value;
}
export type Shape = Readonly<Record<string, 'string' | 'number' | 'boolean' | 'object' | 'array' | {
    optional: 'string' | 'number' | 'boolean' | 'object' | 'array';
}>>;
export declare function forgeSchema<Value>(version: number, shape: Shape): StateSchema<Value>;
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