[Ruby] Setter with arguments?

[tulamide]

The title says it all. I have nested hashes in a class and access them via methods, for example:

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... (class defintition and intitializing left out)

def something(layer1, layer2)
    return myHash[layer0][layer1][layer2]
end

It is called straight-forward:

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myClass.something(:first, :second)

However, when I try to create a setter with these arguments, it end in an error. Ruby seems to only work with no-argument-methods as setters. I try to get something, that allows me to do that:

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myClass.something(:first, :second) = someobject

Since this doesn't work:

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def something(layer1, layer2)=(myobject)
    myHash[layer0][layer1][layer2] = myobject
end

Are there any ideas, how I could achieve it nevertheless?