Method is_nested

cpp/src/parquet/types.cc:847–851

}
bool LogicalType::is_invalid() const { return !is_valid(); }
bool LogicalType::is_nested() const {
  return impl_->type() == LogicalType::Type::LIST ||
         impl_->type() == LogicalType::Type::MAP ||
         impl_->type() == LogicalType::Type::VARIANT;
}
bool LogicalType::is_nonnested() const { return !is_nested(); }
bool LogicalType::is_serialized() const { return impl_->is_serialized(); }