in uber-core/src/main/java/com/uber/sdk/core/auth/Scope.java [161:172]
public static String toStandardString(@Nonnull Collection<Scope> scopes) {
StringBuilder stringBuilder = new StringBuilder();
int i = 0;
for (Scope scope : scopes) {
stringBuilder.append(scope.toString().toLowerCase());
if (i < scopes.size() - 1) {
stringBuilder.append(' ');
}
i++;
}
return stringBuilder.toString();
}