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: _input_data_config.rs
    path of file: ./repos/aws-sdk-rust/sdk/comprehendmedical/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 input properties for an entities detection job. This includes the name of the S3 bucket and the path to the files to be analyzed.</p>
#[non_exhaustive]
#[deri
    
    pub fn build(self) -> ::std::result::Result<crate::types::InputDataConfig, ::aws_smithy_types::error::operation::BuildError> {
        ::std::result::Result::Ok(crate::types::InputDataConfig {
            s3_bucket: self.s3_bucket.ok_or_else(|| {
                ::aws_smithy_types::error::operation::BuildError::missing_field(
                    "s3_bucket",
                    "s3_bucket was not specified but it is required when building InputDataConfig",
                )
            })?,
            s3_key: self.s3_key,
        })
    }