singleValueContainer()
Returns an encoding container appropriate for holding a single primitive value.
Declaration
func singleValueContainer() -> any SingleValueEncodingContainerReturn Value
A new empty single value container.
Discussion
You must use only one kind of top-level encoding container. This method must not be called after a call to unkeyedContainer() or container(keyedBy:), or after encoding a value through a call to singleValueContainer()