encodeDoubleElement
Encodes a 64-bit IEEE 754 floating point value associated with an element at the given index in serial descriptor. The element at the given index should have PrimitiveKind.DOUBLE kind.
Encodes a 64-bit IEEE 754 floating point value associated with an element at the given index in serial descriptor. The element at the given index should have PrimitiveKind.DOUBLE kind.