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�DbDocz�Represents a generic document in JSON format.
Args:
value (object): The value can be a JSON string or a dict.
Raises:
ValueError: If ``value`` type is not a basestring or dict.
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`doc_id` provided. If `doc_id` is not provided, it will be removed from
new :class:`mysqlx.DbDoc` object.
Args:
doc_id (Optional[str]): Document ID
Returns:
mysqlx.DbDoc: A new instance of DbDoc containing the _id provided
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Returns:
str: A JSON formatted ``str`` representation of the document.
.. versionadded:: 8.0.16
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