import { EndpointParameterInstructions } from "@aws-sdk/middleware-endpoint";
import { Command as $Command } from "@aws-sdk/smithy-client";
import { Handler, HttpHandlerOptions as __HttpHandlerOptions, MetadataBearer as __MetadataBearer, MiddlewareStack } from "@aws-sdk/types";
import { EC2ClientResolvedConfig, ServiceInputTypes, ServiceOutputTypes } from "../EC2Client";
import { AssociateSubnetCidrBlockRequest, AssociateSubnetCidrBlockResult } from "../models/models_0";
/**
 * @public
 *
 * The input for {@link AssociateSubnetCidrBlockCommand}.
 */
export interface AssociateSubnetCidrBlockCommandInput extends AssociateSubnetCidrBlockRequest {
}
/**
 * @public
 *
 * The output of {@link AssociateSubnetCidrBlockCommand}.
 */
export interface AssociateSubnetCidrBlockCommandOutput extends AssociateSubnetCidrBlockResult, __MetadataBearer {
}
/**
 * @public
 * <p>Associates a CIDR block with your subnet. You can only associate a single IPv6 CIDR
 *             block with your subnet. An IPv6 CIDR block must have a prefix length of /64.</p>
 * @example
 * Use a bare-bones client and the command you need to make an API call.
 * ```javascript
 * import { EC2Client, AssociateSubnetCidrBlockCommand } from "@aws-sdk/client-ec2"; // ES Modules import
 * // const { EC2Client, AssociateSubnetCidrBlockCommand } = require("@aws-sdk/client-ec2"); // CommonJS import
 * const client = new EC2Client(config);
 * const input = { // AssociateSubnetCidrBlockRequest
 *   Ipv6CidrBlock: "STRING_VALUE", // required
 *   SubnetId: "STRING_VALUE", // required
 * };
 * const command = new AssociateSubnetCidrBlockCommand(input);
 * const response = await client.send(command);
 * ```
 *
 * @param AssociateSubnetCidrBlockCommandInput - {@link AssociateSubnetCidrBlockCommandInput}
 * @returns {@link AssociateSubnetCidrBlockCommandOutput}
 * @see {@link AssociateSubnetCidrBlockCommandInput} for command's `input` shape.
 * @see {@link AssociateSubnetCidrBlockCommandOutput} for command's `response` shape.
 * @see {@link EC2ClientResolvedConfig | config} for EC2Client's `config` shape.
 *
 *
 */
export declare class AssociateSubnetCidrBlockCommand extends $Command<AssociateSubnetCidrBlockCommandInput, AssociateSubnetCidrBlockCommandOutput, EC2ClientResolvedConfig> {
    readonly input: AssociateSubnetCidrBlockCommandInput;
    static getEndpointParameterInstructions(): EndpointParameterInstructions;
    /**
     * @public
     */
    constructor(input: AssociateSubnetCidrBlockCommandInput);
    /**
     * @internal
     */
    resolveMiddleware(clientStack: MiddlewareStack<ServiceInputTypes, ServiceOutputTypes>, configuration: EC2ClientResolvedConfig, options?: __HttpHandlerOptions): Handler<AssociateSubnetCidrBlockCommandInput, AssociateSubnetCidrBlockCommandOutput>;
    /**
     * @internal
     */
    private serialize;
    /**
     * @internal
     */
    private deserialize;
}
