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: _package_vulnerability_details.rs
    path of file: ./repos/aws-sdk-rust/sdk/imagebuilder/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>Information about package vulnerability findings.</p>
#[non_exhaustive]
#[derive(::std::clone::Clone, ::std::cmp::PartialEq, ::std::fmt::Debug)]
pub struct PackageVulnerabilityDetails {
    /// <p>A unique identifier for this vulnerability.</p>
    pub vulnerability_id: ::std::string::String,
    /// <p>The packages that this vulnerability impacts.</p>
    pub vulnerable_packages: ::std::option::Option<::std::vec::Vec<crate::types::VulnerablePackage>>,
    /// <p>The source of the vulnerability information.</p>
    pub source: ::std::option::Option<::std::string::String>,
    /// <p>CVSS scores for one or more vulnerabilities that Amazon Inspector identified for a package.</p>
    pub cvss: ::std::option::Option<::std::vec::Vec<crate::types::CvssScore>>,
    /// <p>Vulnerabilities that are often rel
    
    pub fn build(self) -> ::std::result::Result<crate::types::PackageVulnerabilityDetails, ::aws_smithy_types::error::operation::BuildError> {
        ::std::result::Result::Ok(crate::types::PackageVulnerabilityDetails {
            vulnerability_id: self.vulnerability_id.ok_or_else(|| {
                ::aws_smithy_types::error::operation::BuildError::missing_field(
                    "vulnerability_id",
                    "vulnerability_id was not specified but it is required when building PackageVulnerabilityDetails",
                )
            })?,
            vulnerable_packages: self.vulnerable_packages,
            source: self.source,
            cvss: self.cvss,
            related_vulnerabilities: self.related_vulnerabilities,
            source_url: self.source_url,
            vendor_severity: self.vendor_severity,
            vendor_created_at: self.vendor_created_at,
            vendor_updated_at: self.vendor_updated_at,
            reference_urls: self.reference_urls,
        })
    }