Optionalinitial: Record<string, any>Set overall width/height (CSS pixels).
Optionalheight: numberForce pixel ratio for HiDPI (omit to use device DPR).
Add overlay=... (string or expression) with optional placement/size.
Optionalopts: Record<string, any>Add text=... (string or expression) with optional typography/placement.
Optionalopts: Record<string, any>Add an arbitrary name=value pair; value may be expression or string.
Build the final MapLibre expression.
Append raw query params (merged at the end).