You are an expert in writing code in many different languages. Your goal is to perform code completion for the following code, keeping in mind the rest of the code and the file meta data.
    Metadata details:
    filename: _clone_stack_input.rs
    path of file: ./repos/aws-sdk-rust/sdk/opsworks/src/operation/clone_stack
    
    the code of the file until where you have to start completion: // Code generated by software.amazon.smithy.rust.codegen.smithy-rs. DO NOT EDIT.
#[allow(missing_docs)] // documentation missing in model
#[non_exhaustive]
#[derive(::std::clone::Clone, ::std::cmp::PartialEq, ::std::fmt::Debug)]
pub struct CloneStackInput {
    /// <p>The source stack ID.</p>
    pub source_stack_id: ::std::option::Option<::std::string::String>,
    /// <p>The cloned stack name.</p>
    pub name: ::std::option::Option<::std::string::String>,
    /// <p>The cloned stack AWS region, such as "ap-northeast-2". For more information about AWS regions, see <a href="https://docs.aws.amazon.com/general/latest/gr/rande.html">Regions and Endpoints</a>.</p>
    pub region: ::std::option::Option<::std::string::String>,
    /// <p>The ID of the VPC that the cloned stack is to be launched into. It must be in the specified region. All instances are launched into this VPC, and you cannot change the ID later.</p>
    /// <ul>
    /// <li>
    /// <p>If your account supports EC2 Classic, the default value is no VPC.</p></li>
    /// <li>
    /// <p>If your account does not support EC2 Classic, the default value is the default VPC for the specified region.</p></li>
    /// </ul>
    /// <p>If the VPC ID corresponds to a default VPC
    
    pub fn build(self) -> ::std::result::Result<crate::operation::clone_stack::CloneStackInput, ::aws_smithy_types::error::operation::BuildError> {
        ::std::result::Result::Ok(crate::operation::clone_stack::CloneStackInput {
            source_stack_id: self.source_stack_id,
            name: self.name,
            region: self.region,
            vpc_id: self.vpc_id,
            attributes: self.attributes,
            service_role_arn: self.service_role_arn,
            default_instance_profile_arn: self.default_instance_profile_arn,
            default_os: self.default_os,
            hostname_theme: self.hostname_theme,
            default_availability_zone: self.default_availability_zone,
            default_subnet_id: self.default_subnet_id,
            custom_json: self.custom_json,
            configuration_manager: self.configuration_manager,
            chef_configuration: self.chef_configuration,
            use_custom_cookbooks: self.use_custom_cookbooks,
            use_opsworks_security_groups: self.use_opsworks_security_groups,
            custom_cookbooks_source: self.custom_cookbooks_source,
            default_ssh_key_name: self.default_ssh_key_name,
            clone_permissions: self.clone_permissions,
            clone_app_ids: self.clone_app_ids,
            default_root_device_type: self.default_root_device_type,
            agent_version: self.agent_version,
        })
    }