Unexpected attribute name generated when using query parameter with hyphen

[himan085]

Hi,
I am using Smithy models, which convert to Open API schema. It is further used to generate code in TypeScript.
I want to understand the deserialisation behaviour of httpQuery trait.
It mentions that : "Binds an operation input structure member to a query string parameter."
For the below code:

@input
structure ListThingsInput {
    @httpQuery("object-color")
    color: String
}

I was expecting that the query string params used by the clients would be object-color but when Smithy forms the deserialised structure it would have a property of color. But I'm observing the de-serialised structure actually contains objectColor and not color.

Is this expected ? If yes, then what's the significance of specifying color again as a member in the structure.
Thanks in advance!