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: to_fields.rs
    path of file: ./repos/snarkVM/console/program/src/data/plaintext
    
    the code of the file until where you have to start completion: // Copyright (C) 2019-2023 Aleo Systems Inc.
// This file is part of the snarkVM library.

// 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,
/
    
    fn to_fields(&self) -> Result<Vec<Self::Field>> {
        // Encode the data as little-endian bits.
        let mut bits_le = self.to_bits_le();
        // Adds one final bit to the data, to serve as a terminus indicator.
        // During decryption, this final bit ensures we've reached the end.
        bits_le.push(true);
        // Pack the bits into field elements.
        let fields = bits_le
            .chunks(Field::<N>::size_in_data_bits())
            .map(Field::<N>::from_bits_le)
            .collect::<Result<Vec<_>>>()?;
        // Ensure the number of field elements does not exceed the maximum allowed size.
        match fields.len() <= N::MAX_DATA_SIZE_IN_FIELDS as usize {
            true => Ok(fields),
            false => bail!("Plaintext exceeds maximum allowed size"),
        }
    }