Problem using YAML

Pazzeo has asked for the wisdom of the Perl Monks concerning the following question:

Hello everybody,

I have a problem using YAML, in particular I want to save the values with also the hash variable name.

Example in my code I have the following code:

 
use YAML  qw'DumpFile LoadFile';
. 
. 
.
DumpFile("test.yaml", \%test);
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In the generated test.yaml I have always the following information:

---
key1: value1
key2: value2
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But I would like to have the following datas:

test:
 key1: value1
 key2: value2
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In particular I would substitute the --- with the name of hash variable.

How could I generate this output in the file? Is it possible? Thanks in advance Pazzeo