| Parameters: | 
- obj (any object) – the object to extract an item from
 
- path (list of integers and strings) – attribute labels from outermost to innermost
 
- arrayErrCode (integer) – error code to raise if an array index is not found
 
- mapErrCode (integer) – error code to raise if a map key is not found
 
- fcnName (string) – function name for error reporting
 
- pos (string or None) – position from locator marks for error reporting
 
 
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