ven S3 path.

Args:
    s3_url (str): S3 endpoint.

Returns:
    str: Name of the region where the bucket is saved.
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<h2 class="memtitle"><span class="permalink"><a href="#a027c39b569f5277e95faa994e754c13e">&#9670;&nbsp;</a></span>s3_bucket_is_valid()</h2>

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          <td class="memname">def util.AWSUtil.s3_bucket_is_valid </td>
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