How to accumulate Hashes of Array value with the same key?

[Edward Wijaya]

Hi,

I have thre HoAs with the same key but different value.
How can I efficiently join the HoA:

my %HoA = (key1 => ['A',1]);
my %HoA2 = (key1 => ['B',2]);
my %HoA3 = (key1 => ['C',2]);

into:

%HoA = (key1 => ['A',1],['B',2],['C',2]);

namely accumulating the value of HoA2,HoA3 into  HoA.

Thanks very much for the time.

Regards,
Edward WIJAYA
SINGAPORE

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