From language/setbagmix

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Returns True if $a and $b are identical, else False. More information, Wikipedia definition.

From language/operators

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multi sub infix:<(==)>($a,$b --> Bool:D)

Set equality operator.

Returns True if $a and $b are identical.

say (1, 2, 3) (==) (1, 3, 2); # OUTPUT: «True␤» 
say (1, 2, 3) ≡ (1, 2, 4); # OUTPUT: «False␤»