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: _output_update.rs
    path of file: ./repos/aws-sdk-rust/sdk/kinesisanalytics/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>Describes updates to the output configuration identified by the <code>OutputId</code>.</p>
#[non_exhaustive]
#[derive(::std::clone::Clone, ::std::cmp::PartialEq, ::std::fmt::Debug)]
pub struct OutputUpdate {
    /// <p>Identifies the specific output configuration that you want to update.</p>
    pub output_id: ::std::string::String,
    /// <p>If you want to specif
    
    pub fn build(self) -> ::std::result::Result<crate::types::OutputUpdate, ::aws_smithy_types::error::operation::BuildError> {
        ::std::result::Result::Ok(crate::types::OutputUpdate {
            output_id: self.output_id.ok_or_else(|| {
                ::aws_smithy_types::error::operation::BuildError::missing_field(
                    "output_id",
                    "output_id was not specified but it is required when building OutputUpdate",
                )
            })?,
            name_update: self.name_update,
            kinesis_streams_output_update: self.kinesis_streams_output_update,
            kinesis_firehose_output_update: self.kinesis_firehose_output_update,
            lambda_output_update: self.lambda_output_update,
            destination_schema_update: self.destination_schema_update,
        })
    }