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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def _get_or_create_s3_bucket(s3, name):
 """Get an S3 bucket resource after making sure it exists"""

    exists = True
    try:
        s3.meta.client.head_bucket(Bucket=name)
    except botocore.exceptions.ClientError as e:
        error_code = int(e.response["Error"]["Code"])
        if error_code == 404:
            exists = False
        else:
            raise

    if not exists:
        s3.create_bucket(Bucket=name)

    return s3.Bucket(name)