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: _not_found_exception.rs
    path of file: ./repos/aws-sdk-rust/sdk/mobile/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>No entity can be found with the specified identifier.</p>
#[non_exhaustive]
#[derive(::std::clone::Clone, ::std::cmp
    
    fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
        ::std::write!(f, "NotFoundException")?;
        if let ::std::option::Option::Some(inner_1) = &self.message {
            {
                ::std::write!(f, ": {}", inner_1)?;
            }
        }
        Ok(())
    }