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: _deployment_application_config.rs
    path of file: ./repos/aws-sdk-rust/sdk/robomaker/src/types
    
    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.

/// <p>Information about a deployment application configuration.</p>
#[non_exhaustive]
#[derive(::std::clone::Clone, ::std::cmp::PartialEq, ::std::fmt::Debug)]
pub struct DeploymentApplicationConfig {
    /// <p>The Amazon Resource Name (ARN) of the robot application.</p>
    pub application: ::std::string::String,
    /// <p>The version of the application.</p>
    pub application_version: ::std::string::String,
    /// <p>The launch configuration.</p>
    p
    
    pub fn build(self) -> ::std::result::Result<crate::types::DeploymentApplicationConfig, ::aws_smithy_types::error::operation::BuildError> {
        ::std::result::Result::Ok(crate::types::DeploymentApplicationConfig {
            application: self.application.ok_or_else(|| {
                ::aws_smithy_types::error::operation::BuildError::missing_field(
                    "application",
                    "application was not specified but it is required when building DeploymentApplicationConfig",
                )
            })?,
            application_version: self.application_version.ok_or_else(|| {
                ::aws_smithy_types::error::operation::BuildError::missing_field(
                    "application_version",
                    "application_version was not specified but it is required when building DeploymentApplicationConfig",
                )
            })?,
            launch_config: self.launch_config,
        })
    }