import type { CBORSchemaType, ExtendableMapSchema, FieldDefinition, MapSchemaType } from "./type.js";
/**
 * Creates a schema for CBOR maps that decode to TypeScript objects
 *
 * @template Fields Array of field definitions
 * @param fields Array of field definitions describing the map structure
 *
 * @example
 * ```typescript
 * import { cs } from "../cbor_schema.ts";
 * const cwtSchema = cs.map([
 *   cs.numberField(1, "iss", cs.string),     // issuer
 *   cs.numberField(4, "exp", cs.integer),    // expiration time
 *   cs.numberField(7, "cti", cs.bytes),      // CWT ID
 *   cs.field("cty", cs.optional(cs.string))  // content type (string key)
 * ]);
 *
 * const claims = {
 *   iss: "example-issuer",
 *   exp: 1_725_000_000,
 *   cti: new Uint8Array([0x01, 0x02, 0x03])
 * };
 *
 * const encoded = cs.toCBOR(cwtSchema, claims);
 * const decoded = cs.fromCBOR(cwtSchema, encoded);
 * ```
 */
export declare function map<Fields extends FieldDefinition<unknown, string>[]>(fields: Fields): ExtendableMapSchema<MapSchemaType<Fields>>;
/**
 * Creates a field definition for use in map schemas with a string key
 *
 * @template T The type of the field value
 * @template K The literal string type for the JavaScript property name
 * @param key The CBOR key as a string
 * @param schema Schema for the field value
 *
 * @example
 * ```typescript
 * import { cs } from "../cbor_schema.ts";
 * const contentTypeField = cs.field("cty", cs.string);
 * const kidHeaderField = cs.field("kid", cs.optional(cs.bytes));
 * ```
 */
export declare function field<T, K extends string>(key: K, schema: CBORSchemaType<T>): FieldDefinition<T, K>;
/**
 * Creates a field definition for use in map schemas with a numeric key
 *
 * @template T The type of the field value
 * @template K The literal string type for the JavaScript property name
 * @param key The CBOR key as a number
 * @param jsKey The JavaScript property name to use
 * @param schema Schema for the field value
 *
 * @example
 * ```typescript
 * import { cs } from "../cbor_schema.ts";
 * const ktyField = cs.numberField(1, "kty", cs.integer);
 * const algField = cs.numberField(3, "alg", cs.integer);
 * ```
 */
export declare function numberField<T, K extends string>(key: number, jsKey: K, schema: CBORSchemaType<T>): FieldDefinition<T, K>;
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