lerp method
Implementation
T lerp(T a, T b, double t) {
T? result = nullableLerp(a, b, t);
assert(result != null, 'Unsafe lerp');
return result!;
}
T lerp(T a, T b, double t) {
T? result = nullableLerp(a, b, t);
assert(result != null, 'Unsafe lerp');
return result!;
}