import { z } from "zod";
import { CanonId } from "./canonId";
export declare const SchemaVersion: z.ZodString;
export type SchemaVersion = z.infer<typeof SchemaVersion>;
export declare const SchemaHeader: z.ZodObject<{
    _schema_id: z.ZodString;
    _schema_version: z.ZodString;
    _context: z.ZodObject<{
        created_by: z.ZodString;
        created_at: z.ZodString;
        updated_by: z.ZodOptional<z.ZodString>;
        updated_at: z.ZodOptional<z.ZodString>;
        reason: z.ZodOptional<z.ZodString>;
        source: z.ZodOptional<z.ZodString>;
    }, "strip", z.ZodTypeAny, {
        created_by: string;
        created_at: string;
        updated_by?: string | undefined;
        updated_at?: string | undefined;
        reason?: string | undefined;
        source?: string | undefined;
    }, {
        created_by: string;
        created_at: string;
        updated_by?: string | undefined;
        updated_at?: string | undefined;
        reason?: string | undefined;
        source?: string | undefined;
    }>;
    type: z.ZodString;
}, "strip", z.ZodTypeAny, {
    type: string;
    _schema_id: string;
    _schema_version: string;
    _context: {
        created_by: string;
        created_at: string;
        updated_by?: string | undefined;
        updated_at?: string | undefined;
        reason?: string | undefined;
        source?: string | undefined;
    };
}, {
    type: string;
    _schema_id: string;
    _schema_version: string;
    _context: {
        created_by: string;
        created_at: string;
        updated_by?: string | undefined;
        updated_at?: string | undefined;
        reason?: string | undefined;
        source?: string | undefined;
    };
}>;
export type SchemaHeader = z.infer<typeof SchemaHeader>;
export declare function createSchemaHeader(schemaId: CanonId, schemaVersion: SchemaVersion, context: {
    created_by: string;
    created_at?: Date;
    updated_by?: string;
    updated_at?: Date;
    reason?: string;
    source?: string;
}): SchemaHeader;
//# sourceMappingURL=schemaHeader.d.ts.map