def delete_account_metadata(self, prefix=None):
        # Add the metadata prefix, if needed.
        if prefix is None:
            prefix = ACCOUNT_META_PREFIX
        curr_meta = self.get_account_metadata(prefix=prefix)
        for ckey in curr_meta:
            curr_meta[ckey] = ""
        new_meta = _massage_metakeys(curr_meta, prefix)
        uri = "/"
        resp, resp_body = self.api.method_post(uri, headers=new_meta)
        return 200 <= resp.status_code <= 299
Removes all metadata matching the specified prefix from the account.
dataset/ETHPy150Open rackspace/pyrax/pyrax/object_storage.py/ContainerManager.delete_account_metadata