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: _virtual_router_data.rs
    path of file: ./repos/aws-sdk-rust/sdk/appmesh/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>An object that represents a virtual router returned by a describe operation.</p>
#[non_exhaustive]
#[derive(::std::clone::Clone, ::std::cmp::PartialEq, ::std::fmt::Debug)]
pub struct VirtualRouterData {
    /// <p>The name of the service mesh that the virtual router resides in.</p>
    pub mesh_name: ::std::string::String,
    /// <p>The name of the virtual router.</p>
    pub virtual_router_name: ::std::string::S
    
    pub fn build(self) -> ::std::result::Result<crate::types::VirtualRouterData, ::aws_smithy_types::error::operation::BuildError> {
        ::std::result::Result::Ok(crate::types::VirtualRouterData {
            mesh_name: self.mesh_name.ok_or_else(|| {
                ::aws_smithy_types::error::operation::BuildError::missing_field(
                    "mesh_name",
                    "mesh_name was not specified but it is required when building VirtualRouterData",
                )
            })?,
            virtual_router_name: self.virtual_router_name.ok_or_else(|| {
                ::aws_smithy_types::error::operation::BuildError::missing_field(
                    "virtual_router_name",
                    "virtual_router_name was not specified but it is required when building VirtualRouterData",
                )
            })?,
            spec: self.spec,
            metadata: self.metadata,
            status: self.status,
        })
    }