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: shape_group.rs
    path of file: ./repos/aws-sdk-rust/sdk/iam/src/protocol_serde
    
    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(clippy::needless_question_mark)]
pub fn de_group(decoder: &mut ::aws_smithy_xml::decode::ScopedDecoder) -> Result<crate::types::Group, ::aws_smithy_xml::decode::XmlDecodeError> {
    #[al
    
pub fn de_group(decoder: &mut ::aws_smithy_xml::decode::ScopedDecoder) -> Result<crate::types::Group, ::aws_smithy_xml::decode::XmlDecodeError> {
    #[allow(unused_mut)]
    let mut builder = crate::types::Group::builder();
    while let Some(mut tag) = decoder.next_tag() {
        match tag.start_el() {
            s if s.matches("Path") /* Path com.amazonaws.iam#Group$Path */ =>  {
                let var_1 =
                    Some(
                        Result::<::std::string::String, ::aws_smithy_xml::decode::XmlDecodeError>::Ok(
                            ::aws_smithy_xml::decode::try_data(&mut tag)?.as_ref()
                            .into()
                        )
                        ?
                    )
                ;
                builder = builder.set_path(var_1);
            }
            ,
            s if s.matches("GroupName") /* GroupName com.amazonaws.iam#Group$GroupName */ =>  {
                let var_2 =
                    Some(
                        Result::<::std::string::String, ::aws_smithy_xml::decode::XmlDecodeError>::Ok(
                            ::aws_smithy_xml::decode::try_data(&mut tag)?.as_ref()
                            .into()
                        )
                        ?
                    )
                ;
                builder = builder.set_group_name(var_2);
            }
            ,
            s if s.matches("GroupId") /* GroupId com.amazonaws.iam#Group$GroupId */ =>  {
                let var_3 =
                    Some(
                        Result::<::std::string::String, ::aws_smithy_xml::decode::XmlDecodeError>::Ok(
                            ::aws_smithy_xml::decode::try_data(&mut tag)?.as_ref()
                            .into()
                        )
                        ?
                    )
                ;
                builder = builder.set_group_id(var_3);
            }
            ,
            s if s.matches("Arn") /* Arn com.amazonaws.iam#Group$Arn */ =>  {
                let var_4 =
                    Some(
                        Result::<::std::string::String, ::aws_smithy_xml::decode::XmlDecodeError>::Ok(
                            ::aws_smithy_xml::decode::try_data(&mut tag)?.as_ref()
                            .into()
                        )
                        ?
                    )
                ;
                builder = builder.set_arn(var_4);
            }
            ,
            s if s.matches("CreateDate") /* CreateDate com.amazonaws.iam#Group$CreateDate */ =>  {
                let var_5 =
                    Some(
                        ::aws_smithy_types::DateTime::from_str(
                            ::aws_smithy_xml::decode::try_data(&mut tag)?.as_ref()
                            , ::aws_smithy_types::date_time::Format::DateTimeWithOffset
                        )
                        .map_err(|_|::aws_smithy_xml::decode::XmlDecodeError::custom("expected (timestamp: `com.amazonaws.iam#dateType`)"))
                        ?
                    )
                ;
                builder = builder.set_create_date(var_5);
            }
            ,
            _ => {}
        }
    }
    Ok(crate::serde_util::group_correct_errors(builder)
        .build()
        .map_err(|_| ::aws_smithy_xml::decode::XmlDecodeError::custom("missing field"))?)
}