/**
 * # Token Update NFTs
 * Given a token identifier and a metadata block, change the metadata for
 * one or more non-fungible/unique token instances.
 *
 * ### Keywords
 * The key words "MUST", "MUST NOT", "REQUIRED", "SHALL", "SHALL NOT",
 * "SHOULD", "SHOULD NOT", "RECOMMENDED", "MAY", and "OPTIONAL" in this
 * document are to be interpreted as described in
 * [RFC2119](https://www.ietf.org/rfc/rfc2119) and clarified in
 * [RFC8174](https://www.ietf.org/rfc/rfc8174).
 */
syntax = "proto3";

package proto;

// SPDX-License-Identifier: Apache-2.0
option java_package = "com.hederahashgraph.api.proto.java";
// <<<pbj.java_package = "com.hedera.hapi.node.token">>> This comment is special code for setting PBJ Compiler java package
option java_multiple_files = true;

import "services_basic_types.proto";
import "google/protobuf/wrappers.proto";

/**
 * Modify the metadata field for an individual non-fungible/unique token (NFT).
 *
 * Updating the metadata of an NFT SHALL NOT affect ownership or
 * the ability to transfer that NFT.<br/>
 * This transaction SHALL affect only the specific serial numbered tokens
 * identified.
 * This transaction SHALL modify individual token metadata.<br/>
 * This transaction MUST be signed by the token `metadata_key`.<br/>
 * The token `metadata_key` MUST be a valid `Key`.<br/>
 * The token `metadata_key` MUST NOT be an empty `KeyList`.
 *
 * ### Block Stream Effects
 * None
 */
message TokenUpdateNftsTransactionBody {
    /**
     * A token identifier.<br/>
     * This is the token type (i.e. collection) for which to update NFTs.
     * <p>
     * This field is REQUIRED.<br/>
     * The identified token MUST exist, MUST NOT be paused, MUST have the type
     * non-fungible/unique, and MUST have a valid `metadata_key`.
     */
    TokenID token = 1;

    /**
     * A list of serial numbers to be updated.
     * <p>
     * This field is REQUIRED.<br/>
     * This list MUST have at least one(1) entry.<br/>
     * This list MUST NOT have more than ten(10) entries.
     */
    repeated int64 serial_numbers = 2;

    /**
     * A new value for the metadata.
     * <p>
     * If this field is not set, the metadata SHALL NOT change.<br/>
     * This value, if set, MUST NOT exceed 100 bytes.
     */
    google.protobuf.BytesValue metadata = 3;
}