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: _tag_filter.rs
    path of file: ./repos/aws-sdk-rust/sdk/applicationdiscovery/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>The tag filter. Valid names are: <code>tagKey</code>, <code>tagValue</code>, <code>configurationId</code>.</p>
#[non_exhaustive]
#[derive(::std::clone::Clone, ::std::cmp::PartialEq, ::std::fmt::Debug)]
pub struct TagFilter {
    /// <p>A name of the tag filter.</p>
    pub name: ::std::string::String,
    /// <p>Values for the tag filter.</p>
    pub val
    
    pub fn build(self) -> ::std::result::Result<crate::types::TagFilter, ::aws_smithy_types::error::operation::BuildError> {
        ::std::result::Result::Ok(crate::types::TagFilter {
            name: self.name.ok_or_else(|| {
                ::aws_smithy_types::error::operation::BuildError::missing_field(
                    "name",
                    "name was not specified but it is required when building TagFilter",
                )
            })?,
            values: self.values.ok_or_else(|| {
                ::aws_smithy_types::error::operation::BuildError::missing_field(
                    "values",
                    "values was not specified but it is required when building TagFilter",
                )
            })?,
        })
    }