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: _email_configuration_type.rs
    path of file: ./repos/aws-sdk-rust/sdk/cognitoidentityprovider/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 email configuration of your user pool. The email configuration type sets your preferred sending method, Amazon Web Services R
    
    pub fn build(self) -> crate::types::EmailConfigurationType {
        crate::types::EmailConfigurationType {
            source_arn: self.source_arn,
            reply_to_email_address: self.reply_to_email_address,
            email_sending_account: self.email_sending_account,
            from: self.from,
            configuration_set: self.configuration_set,
        }
    }