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: ecdsa_verify.rs
    path of file: ./repos/risc0/benchmarks/methods/guest/src/bin
    
    the code of the file until where you have to start completion: // Copyright 2024 RISC Zero, Inc.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
//     http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// S
    
fn main() {
    // Decode the verifying key, message, and signature from the inputs.
    let (iterations, encoded_verifying_key, message, signature): (
        u32,
        EncodedPoint,
        Vec<u8>,
        Signature,
    ) = env::read();
    let verifying_key = VerifyingKey::from_encoded_point(&encoded_verifying_key).unwrap();

    // Verify the signature, panicking if verification fails.
    for _ in 0..iterations {
        verifying_key
            .verify(&message, &signature)
            .expect("ECDSA signature verification failed");
    }

    // Commit to the journal the verifying key and message that was signed.
    env::commit(&(encoded_verifying_key, message));
}