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: _s3_content_base_location.rs
    path of file: ./repos/aws-sdk-rust/sdk/kinesisanalyticsv2/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 S3 bucket that holds the application information.</p>
#[non_exhaustive]
#[derive(::std::clone::Clone, ::std::cmp::PartialEq, ::std::fmt::Debug)]
pub struct S3ContentBaseLocation {
    /// <p>The Amazon Resource Name (ARN) of the S3 bucket.</p>
    pub bucket_arn: ::std::string::String,
    /// <p>The base path for the S3 bucket.</p>
    pub base_path: ::std::option::Option<::std::string::String>,
}
impl S3Con
    
    pub fn build(self) -> ::std::result::Result<crate::types::S3ContentBaseLocation, ::aws_smithy_types::error::operation::BuildError> {
        ::std::result::Result::Ok(crate::types::S3ContentBaseLocation {
            bucket_arn: self.bucket_arn.ok_or_else(|| {
                ::aws_smithy_types::error::operation::BuildError::missing_field(
                    "bucket_arn",
                    "bucket_arn was not specified but it is required when building S3ContentBaseLocation",
                )
            })?,
            base_path: self.base_path,
        })
    }