def dash(value)
      case value
      when Hash then value.deep_transform_keys! { |key| dash(key) }
      when Symbol then dash(value.to_s).to_sym
      when String then StringSupport.dash(value)
      else value
      end
    end
def dash(value)
      case value
      when Hash then value.deep_transform_keys! { |key| dash(key) }
      when Symbol then dash(value.to_s).to_sym
      when String then StringSupport.dash(value)
      else value
      end
    end
Transforms values to dashed-case.
 This is the default case for the JsonApi adapter.

 @example:
    "some_key" => "some-key",