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: _list_hls_manifest_configuration.rs
    path of file: ./repos/aws-sdk-rust/sdk/mediapackagev2/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>List the HTTP live streaming (HLS) manifest configuration.</p>
#[non_exhaustive]
#[derive(::std::clone::Clone, ::std::cmp::PartialEq, ::std::fmt::Debug)]
pub struct ListHlsManifestConfiguration {
    /// <p>A short short string that's appended to the endpoint URL. The manifest name creates a unique path to this endpoint. If you don't enter a value, MediaPackage uses the default manifest name, index. MediaPackage automatically inserts the format extension, such a
    
    pub fn build(self) -> ::std::result::Result<crate::types::ListHlsManifestConfiguration, ::aws_smithy_types::error::operation::BuildError> {
        ::std::result::Result::Ok(crate::types::ListHlsManifestConfiguration {
            manifest_name: self.manifest_name.ok_or_else(|| {
                ::aws_smithy_types::error::operation::BuildError::missing_field(
                    "manifest_name",
                    "manifest_name was not specified but it is required when building ListHlsManifestConfiguration",
                )
            })?,
            child_manifest_name: self.child_manifest_name,
            url: self.url,
        })
    }