@Nullable
  @Override
  protected TypeConversionDescriptorBase findConversionForVariableReference(@Nullable PsiExpression context) {
    if (GuavaOptionalConversionUtil.isOptionalOrContext(context)) {
      return new TypeConversionDescriptor("$o$", "com.google.common.base." + OPTIONAL_CONVERTOR_PATTERN);
    }
    return new TypeConversionDescriptor("$o$", "$o$::get");
  }
@Nullable
  @Override
  protected TypeConversionDescriptorBase findConversionForVariableReference(@Nullable PsiExpression context)