/**
 * # Token Freeze Account
 * Freeze all tokens of an identified type for an identified account.
 *
 * ### 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";

/**
 * Block transfers of a token type for an account.<br/>
 * This, effectively, freezes assets of one account with respect to
 * one token type. While frozen, that account cannot send or receive tokens
 * of the identified type.
 *
 * The token MUST have a `freeze_key` set and that key MUST NOT
 * be an empty `KeyList`.<br/>
 * The token `freeze_key` MUST sign this transaction.<br/>
 * The identified token MUST exist, MUST NOT be deleted, MUST NOT be paused,
 * and MUST NOT be expired.<br/>
 * The identified account MUST exist, MUST NOT be deleted, and
 * MUST NOT be expired.<br/>
 * If the identified account is already frozen with respect to the identified
 * token, the transaction SHALL succeed, but no change SHALL be made.<br/>
 * An association between the identified account and the identified
 * token MUST exist.
 *
 * ### Block Stream Effects
 * None
 */
message TokenFreezeAccountTransactionBody {
    /**
     * A token identifier.
     * <p>
     * This SHALL identify the token type to "freeze".<br/>
     * The identified token MUST exist, MUST NOT be deleted, and MUST be
     * associated to the identified account.
     */
    TokenID token = 1;

    /**
     * An account identifier.
     * <p>
     * This shall identify the account to "freeze".<br/>
     * The identified account MUST exist, MUST NOT be deleted, MUST NOT be
     * expired, and MUST be associated to the identified token.<br/>
     * The identified account SHOULD NOT be "frozen" with respect to the
     * identified token.
     */
    AccountID account = 2;
}