load current backup data(a)
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     Group  | 
                
This function loads the contents of the backup file into the field on which the function is executed. If a mapping test is performed, the content of the selected test file is loaded instead.
Parameter Description
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     Parameter  | 
                
     Description  | 
        
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     a  | 
                
     If true, the contents of the field are encoded with Base64. Default: false.  |