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: api-get-object-file.go
    path of file: ./repos/gotosocial/vendor/github.com/minio/minio-go/v7
    
    the code of the file until where you have to start completion: /*
 * MinIO Go Library for Amazon S3 Compatible Cloud Storage
 * Copyright 2015-2017 MinIO, 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.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package minio

import (
	"context"
	"io"
	"os"
	"path/filepath"

	"github.com/minio/minio-go/v7/pkg/s3utils"
)

// FGetObject - download contents of an object to a local file.
// The options can be used to specify the GET request further.
func (c *Client) FGetObject(ctx context.Context, bucketName, objectName, filePath string, opts GetObjectOptions) error {
	// Input validation.
	if err := s3utils.CheckValidBucketName(bucketName); err != nil {
		return err
	}
	if err := s3utils.CheckValidObjectName(objectName); err != nil {
		return err
	}

	// Verify if destination already exists.
	st, err := os.Stat(filePath)
	if err == nil {
		// If the destination exists and is a dir
    
func (c *Client) FGetObject(ctx context.Context, bucketName, objectName, filePath string, opts GetObjectOptions) error {
	// Input validation.
	if err := s3utils.CheckValidBucketName(bucketName); err != nil {
		return err
	}
	if err := s3utils.CheckValidObjectName(objectName); err != nil {
		return err
	}

	// Verify if destination already exists.
	st, err := os.Stat(filePath)
	if err == nil {
		// If the destination exists and is a directory.
		if st.IsDir() {
			return errInvalidArgument("fileName is a directory.")
		}
	}

	// Proceed if file does not exist. return for all other errors.
	if err != nil {
		if !os.IsNotExist(err) {
			return err
		}
	}

	// Extract top level directory.
	objectDir, _ := filepath.Split(filePath)
	if objectDir != "" {
		// Create any missing top level directories.
		if err := os.MkdirAll(objectDir, 0o700); err != nil {
			return err
		}
	}

	// Gather md5sum.
	objectStat, err := c.StatObject(ctx, bucketName, objectName, StatObjectOptions(opts))
	if err != nil {
		return err
	}

	// Write to a temporary file "fileName.part.minio" before saving.
	filePartPath := filePath + objectStat.ETag + ".part.minio"

	// If exists, open in append mode. If not create it as a part file.
	filePart, err := os.OpenFile(filePartPath, os.O_CREATE|os.O_APPEND|os.O_WRONLY, 0o600)
	if err != nil {
		return err
	}

	// If we return early with an error, be sure to close and delete
	// filePart.  If we have an error along the way there is a chance
	// that filePart is somehow damaged, and we should discard it.
	closeAndRemove := true
	defer func() {
		if closeAndRemove {
			_ = filePart.Close()
			_ = os.Remove(filePartPath)
		}
	}()

	// Issue Stat to get the current offset.
	st, err = filePart.Stat()
	if err != nil {
		return err
	}

	// Initialize get object request headers to set the
	// appropriate range offsets to read from.
	if st.Size() > 0 {
		opts.SetRange(st.Size(), 0)
	}

	// Seek to current position for incoming reader.
	objectReader, objectStat, _, err := c.getObject(ctx, bucketName, objectName, opts)
	if err != nil {
		return err
	}

	// Write to the part file.
	if _, err = io.CopyN(filePart, objectReader, objectStat.Size); err != nil {
		return err
	}

	// Close the file before rename, this is specifically needed for Windows users.
	closeAndRemove = false
	if err = filePart.Close(); err != nil {
		return err
	}

	// Safely completed. Now commit by renaming to actual filename.
	if err = os.Rename(filePartPath, filePath); err != nil {
		return err
	}

	// Return.
	return nil
}