WriteBatch(client)Accumulate write operations to be sent in a batch.
This has the same set of methods for write operations that xref_DocumentReference does, e.g. xref_create.
Parameter | 
      |
|---|---|
| Name | Description | 
client | 
        
  	Client
  	The client that created this batch.  | 
      
Methods
commit
commit(retry: google.api_core.retry.Retry = <_MethodDefault._DEFAULT_VALUE: <object object>>, timeout: Optional[float] = None)Commit the changes accumulated in this batch.
| Parameters | |
|---|---|
| Name | Description | 
retry | 
        
          google.api_core.retry.Retry
          Designation of what errors, if any, should be retried. Defaults to a system-specified policy.  | 
      
timeout | 
        
          float
          The timeout for this request. Defaults to a system-specified value.  | 
      
| Returns | |
|---|---|
| Type | Description | 
List[WriteResult, ...] | 
        The write results corresponding to the changes committed, returned in the same order as the changes were applied to this batch. A write result contains an update_time field. |