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: _bad_request_exception.rs
    path of file: ./repos/aws-sdk-rust/sdk/signer/src/types/error
    
    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 request contains invalid parameters for the ARN or tags. This exception also occurs when you call a tagging API on a cancelled signing profile.</p>
#[non_exhaustive]

    
    fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
        ::std::write!(f, "BadRequestException")?;
        if let ::std::option::Option::Some(inner_1) = &self.message {
            {
                ::std::write!(f, ": {}", inner_1)?;
            }
        }
        Ok(())
    }