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: _stored_query.rs
    path of file: ./repos/aws-sdk-rust/sdk/config/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>Provides the details of a stored query.</p>
#[non_exhaustive]
#[derive(::std::clone::Clone, ::std::cmp::PartialEq, ::std::fmt::Debug)]
pub struct StoredQuery {
    /// <p>The ID of the query.</p>
    pub query_id: ::std::option::Option<::std::string::String>,
    /// <p>Amazon Resource Name (ARN) of the query. For example, arn:partition:service:region:account-id:resource-type/resource-name/resource-id.</p>
    pub query_arn: ::std::option::
    
    pub fn build(self) -> ::std::result::Result<crate::types::StoredQuery, ::aws_smithy_types::error::operation::BuildError> {
        ::std::result::Result::Ok(crate::types::StoredQuery {
            query_id: self.query_id,
            query_arn: self.query_arn,
            query_name: self.query_name.ok_or_else(|| {
                ::aws_smithy_types::error::operation::BuildError::missing_field(
                    "query_name",
                    "query_name was not specified but it is required when building StoredQuery",
                )
            })?,
            description: self.description,
            expression: self.expression,
        })
    }