public String getFuncPrototypeString(String funcName) {
		if (funcName != null && !funcName.isBlank()) {
			funcName = " " + funcName;
		} else {
			funcName = "";
		}
		return "func%s%s".formatted(funcName, getParamListString());
	}
Returns a string that describes the function type as a golang-ish function decl.

@param funcName optional name of a function
@return golang func decl string
Ghidra/Features/Base/src/main/java/ghidra/app/util/bin/format/golang/rtti/types/GoFuncType.java