google-maps-util | Provides Google Maps data conversion and other features

I'm using the nativescript-google-maps-utils plugin in a NativeScript JavaScript project to access GoogleMapsUtils functions (GMSGeometryDistance, GMSGeometryInterpolate, and GMSGeometryHeading) so that I can traverse a polyline. The Android equivalents work fine on Android devices, and the iOS functions listed work on an iOS simulator, but on an iOS device I get the exception,

ReferenceError: Metadata for "GoogleMaps.GMSGeometryDistance" found but symbol not available at runtime.

I've been chasing this for the better part of a day and still don't have any leads; I'd welcome any insight.

[edit]

It's worth mentioning I've done the usual removal of the platforms, hooks, and node-modules folders and rebuilt, with no change in the error.

Here's the first line of code that triggers the error:

let lineDistance = GMSGeometryDistance(latlngs[i], latlngs[i + 1]);

[edit 2]

Still chasing this... I gather from this issue that I need to create a file with a list of exported symbols, and this issue kind of suggests how that could be done, but I'm not understanding how that applies to this situation.

That is, the question at hand now is how can I determine the symbols from the iOS GoogleMapsUtils static library? This is becoming more of an iOS and Xcode question that NativeScript or JavaScript.

[edit 3]

Sigh... I did get this working using the answer I provided below, but now that same approach is no longer working. No idea why :-(

[edit 4]

I re-reviewed the links I referenced above and included the STRIPFLAGS option and now the code works properly. I revised the answer to include this, and to edit build.xcconfig rather than the project file.