docs: Description createErrorDescriptionForNullAssignment(
        ErrorMessage errorMessage,
        @Nullable Tree suggestTreeIfCastToNonNull,
        @Nullable TreePath suggestTreePathIfSuppression,
        Description.Builder descriptionBuilder) {
      final Tree enclosingSuppressTree = suppressibleNode(suggestTreePathIfSuppression);
      if (config.getCastToNonNullMethod() != null) {
        return createErrorDescription(errorMessage, suggestTreeIfCastToNonNull, descriptionBuilder);
      } else {
        return createErrorDescription(errorMessage, enclosingSuppressTree, descriptionBuilder);
      }
    }