Applies JSON style transformations to the carparks layer. Same as
setCarparksStyle(0, style). Set to empty string to clear previous
styling. Returns true if the style was successfully parsed; false
otherwise. If the return value is false, the current carparks style
remains unchanged.
Applies JSON style transformations to the carparks layer. Replaces
previous styling with the specified ID (if such exists). Stylings are
applied in an ascending order. Set to empty string to clear previous
styling with the specified ID. Returns true if the style was
successfully parsed; false otherwise. If the return value is false,
the current carparks style remains unchanged.