diff --git a/tests/optional_scalars_generated.rs b/tests/optional_scalars_generated.rs
new file mode 100644
index 0000000..793a8ac
--- /dev/null
+++ b/tests/optional_scalars_generated.rs
@@ -0,0 +1,667 @@
+// automatically generated by the FlatBuffers compiler, do not modify
+
+
+#![allow(unused_imports, dead_code)]
+
+use std::mem;
+use std::cmp::Ordering;
+
+extern crate flatbuffers;
+use self::flatbuffers::EndianScalar;
+
+#[allow(unused_imports, dead_code)]
+pub mod optional_scalars {
+
+  use std::mem;
+  use std::cmp::Ordering;
+
+  extern crate flatbuffers;
+  use self::flatbuffers::EndianScalar;
+
+#[deprecated(since = "1.13", note = "Use associated constants instead. This will no longer be generated in 2021.")]
+pub const ENUM_MIN_OPTIONAL_BYTE: i8 = 0;
+#[deprecated(since = "1.13", note = "Use associated constants instead. This will no longer be generated in 2021.")]
+pub const ENUM_MAX_OPTIONAL_BYTE: i8 = 2;
+#[deprecated(since = "1.13", note = "Use associated constants instead. This will no longer be generated in 2021.")]
+#[allow(non_camel_case_types)]
+pub const ENUM_VALUES_OPTIONAL_BYTE: [OptionalByte; 3] = [
+  OptionalByte::None,
+  OptionalByte::One,
+  OptionalByte::Two,
+];
+
+#[derive(Clone, Copy, PartialEq, Eq, PartialOrd, Ord, Hash)]
+#[repr(transparent)]
+pub struct OptionalByte(pub i8);
+#[allow(non_upper_case_globals)]
+impl OptionalByte {
+  pub const None: Self = Self(0);
+  pub const One: Self = Self(1);
+  pub const Two: Self = Self(2);
+
+  pub const ENUM_MIN: i8 = 0;
+  pub const ENUM_MAX: i8 = 2;
+  pub const ENUM_VALUES: &'static [Self] = &[
+    Self::None,
+    Self::One,
+    Self::Two,
+  ];
+  /// Returns the variant's name or "" if unknown.
+  pub fn variant_name(self) -> Option<&'static str> {
+    match self {
+      Self::None => Some("None"),
+      Self::One => Some("One"),
+      Self::Two => Some("Two"),
+      _ => None,
+    }
+  }
+}
+impl std::fmt::Debug for OptionalByte {
+  fn fmt(&self, f: &mut std::fmt::Formatter) -> std::fmt::Result {
+    if let Some(name) = self.variant_name() {
+      f.write_str(name)
+    } else {
+      f.write_fmt(format_args!("<UNKNOWN {:?}>", self.0))
+    }
+  }
+}
+impl<'a> flatbuffers::Follow<'a> for OptionalByte {
+  type Inner = Self;
+  #[inline]
+  fn follow(buf: &'a [u8], loc: usize) -> Self::Inner {
+    Self(flatbuffers::read_scalar_at::<i8>(buf, loc))
+  }
+}
+
+impl flatbuffers::Push for OptionalByte {
+    type Output = OptionalByte;
+    #[inline]
+    fn push(&self, dst: &mut [u8], _rest: &[u8]) {
+        flatbuffers::emplace_scalar::<i8>(dst, self.0);
+    }
+}
+
+impl flatbuffers::EndianScalar for OptionalByte {
+  #[inline]
+  fn to_little_endian(self) -> Self {
+    Self(i8::to_le(self.0))
+  }
+  #[inline]
+  fn from_little_endian(self) -> Self {
+    Self(i8::from_le(self.0))
+  }
+}
+
+pub enum ScalarStuffOffset {}
+#[derive(Copy, Clone, PartialEq)]
+
+pub struct ScalarStuff<'a> {
+  pub _tab: flatbuffers::Table<'a>,
+}
+
+impl<'a> flatbuffers::Follow<'a> for ScalarStuff<'a> {
+    type Inner = ScalarStuff<'a>;
+    #[inline]
+    fn follow(buf: &'a [u8], loc: usize) -> Self::Inner {
+        Self { _tab: flatbuffers::Table { buf, loc } }
+    }
+}
+
+impl<'a> ScalarStuff<'a> {
+    #[inline]
+    pub fn init_from_table(table: flatbuffers::Table<'a>) -> Self {
+        ScalarStuff {
+            _tab: table,
+        }
+    }
+    #[allow(unused_mut)]
+    pub fn create<'bldr: 'args, 'args: 'mut_bldr, 'mut_bldr>(
+        _fbb: &'mut_bldr mut flatbuffers::FlatBufferBuilder<'bldr>,
+        args: &'args ScalarStuffArgs) -> flatbuffers::WIPOffset<ScalarStuff<'bldr>> {
+      let mut builder = ScalarStuffBuilder::new(_fbb);
+      builder.add_default_f64(args.default_f64);
+      if let Some(x) = args.maybe_f64 { builder.add_maybe_f64(x); }
+      builder.add_just_f64(args.just_f64);
+      builder.add_default_u64(args.default_u64);
+      if let Some(x) = args.maybe_u64 { builder.add_maybe_u64(x); }
+      builder.add_just_u64(args.just_u64);
+      builder.add_default_i64(args.default_i64);
+      if let Some(x) = args.maybe_i64 { builder.add_maybe_i64(x); }
+      builder.add_just_i64(args.just_i64);
+      builder.add_default_f32(args.default_f32);
+      if let Some(x) = args.maybe_f32 { builder.add_maybe_f32(x); }
+      builder.add_just_f32(args.just_f32);
+      builder.add_default_u32(args.default_u32);
+      if let Some(x) = args.maybe_u32 { builder.add_maybe_u32(x); }
+      builder.add_just_u32(args.just_u32);
+      builder.add_default_i32(args.default_i32);
+      if let Some(x) = args.maybe_i32 { builder.add_maybe_i32(x); }
+      builder.add_just_i32(args.just_i32);
+      builder.add_default_u16(args.default_u16);
+      if let Some(x) = args.maybe_u16 { builder.add_maybe_u16(x); }
+      builder.add_just_u16(args.just_u16);
+      builder.add_default_i16(args.default_i16);
+      if let Some(x) = args.maybe_i16 { builder.add_maybe_i16(x); }
+      builder.add_just_i16(args.just_i16);
+      builder.add_default_enum(args.default_enum);
+      if let Some(x) = args.maybe_enum { builder.add_maybe_enum(x); }
+      builder.add_just_enum(args.just_enum);
+      builder.add_default_bool(args.default_bool);
+      if let Some(x) = args.maybe_bool { builder.add_maybe_bool(x); }
+      builder.add_just_bool(args.just_bool);
+      builder.add_default_u8(args.default_u8);
+      if let Some(x) = args.maybe_u8 { builder.add_maybe_u8(x); }
+      builder.add_just_u8(args.just_u8);
+      builder.add_default_i8(args.default_i8);
+      if let Some(x) = args.maybe_i8 { builder.add_maybe_i8(x); }
+      builder.add_just_i8(args.just_i8);
+      builder.finish()
+    }
+
+    pub const VT_JUST_I8: flatbuffers::VOffsetT = 4;
+    pub const VT_MAYBE_I8: flatbuffers::VOffsetT = 6;
+    pub const VT_DEFAULT_I8: flatbuffers::VOffsetT = 8;
+    pub const VT_JUST_U8: flatbuffers::VOffsetT = 10;
+    pub const VT_MAYBE_U8: flatbuffers::VOffsetT = 12;
+    pub const VT_DEFAULT_U8: flatbuffers::VOffsetT = 14;
+    pub const VT_JUST_I16: flatbuffers::VOffsetT = 16;
+    pub const VT_MAYBE_I16: flatbuffers::VOffsetT = 18;
+    pub const VT_DEFAULT_I16: flatbuffers::VOffsetT = 20;
+    pub const VT_JUST_U16: flatbuffers::VOffsetT = 22;
+    pub const VT_MAYBE_U16: flatbuffers::VOffsetT = 24;
+    pub const VT_DEFAULT_U16: flatbuffers::VOffsetT = 26;
+    pub const VT_JUST_I32: flatbuffers::VOffsetT = 28;
+    pub const VT_MAYBE_I32: flatbuffers::VOffsetT = 30;
+    pub const VT_DEFAULT_I32: flatbuffers::VOffsetT = 32;
+    pub const VT_JUST_U32: flatbuffers::VOffsetT = 34;
+    pub const VT_MAYBE_U32: flatbuffers::VOffsetT = 36;
+    pub const VT_DEFAULT_U32: flatbuffers::VOffsetT = 38;
+    pub const VT_JUST_I64: flatbuffers::VOffsetT = 40;
+    pub const VT_MAYBE_I64: flatbuffers::VOffsetT = 42;
+    pub const VT_DEFAULT_I64: flatbuffers::VOffsetT = 44;
+    pub const VT_JUST_U64: flatbuffers::VOffsetT = 46;
+    pub const VT_MAYBE_U64: flatbuffers::VOffsetT = 48;
+    pub const VT_DEFAULT_U64: flatbuffers::VOffsetT = 50;
+    pub const VT_JUST_F32: flatbuffers::VOffsetT = 52;
+    pub const VT_MAYBE_F32: flatbuffers::VOffsetT = 54;
+    pub const VT_DEFAULT_F32: flatbuffers::VOffsetT = 56;
+    pub const VT_JUST_F64: flatbuffers::VOffsetT = 58;
+    pub const VT_MAYBE_F64: flatbuffers::VOffsetT = 60;
+    pub const VT_DEFAULT_F64: flatbuffers::VOffsetT = 62;
+    pub const VT_JUST_BOOL: flatbuffers::VOffsetT = 64;
+    pub const VT_MAYBE_BOOL: flatbuffers::VOffsetT = 66;
+    pub const VT_DEFAULT_BOOL: flatbuffers::VOffsetT = 68;
+    pub const VT_JUST_ENUM: flatbuffers::VOffsetT = 70;
+    pub const VT_MAYBE_ENUM: flatbuffers::VOffsetT = 72;
+    pub const VT_DEFAULT_ENUM: flatbuffers::VOffsetT = 74;
+
+  #[inline]
+  pub fn just_i8(&self) -> i8 {
+    self._tab.get::<i8>(ScalarStuff::VT_JUST_I8, Some(0)).unwrap()
+  }
+  #[inline]
+  pub fn maybe_i8(&self) -> Option<i8> {
+    self._tab.get::<i8>(ScalarStuff::VT_MAYBE_I8, None)
+  }
+  #[inline]
+  pub fn default_i8(&self) -> i8 {
+    self._tab.get::<i8>(ScalarStuff::VT_DEFAULT_I8, Some(42)).unwrap()
+  }
+  #[inline]
+  pub fn just_u8(&self) -> u8 {
+    self._tab.get::<u8>(ScalarStuff::VT_JUST_U8, Some(0)).unwrap()
+  }
+  #[inline]
+  pub fn maybe_u8(&self) -> Option<u8> {
+    self._tab.get::<u8>(ScalarStuff::VT_MAYBE_U8, None)
+  }
+  #[inline]
+  pub fn default_u8(&self) -> u8 {
+    self._tab.get::<u8>(ScalarStuff::VT_DEFAULT_U8, Some(42)).unwrap()
+  }
+  #[inline]
+  pub fn just_i16(&self) -> i16 {
+    self._tab.get::<i16>(ScalarStuff::VT_JUST_I16, Some(0)).unwrap()
+  }
+  #[inline]
+  pub fn maybe_i16(&self) -> Option<i16> {
+    self._tab.get::<i16>(ScalarStuff::VT_MAYBE_I16, None)
+  }
+  #[inline]
+  pub fn default_i16(&self) -> i16 {
+    self._tab.get::<i16>(ScalarStuff::VT_DEFAULT_I16, Some(42)).unwrap()
+  }
+  #[inline]
+  pub fn just_u16(&self) -> u16 {
+    self._tab.get::<u16>(ScalarStuff::VT_JUST_U16, Some(0)).unwrap()
+  }
+  #[inline]
+  pub fn maybe_u16(&self) -> Option<u16> {
+    self._tab.get::<u16>(ScalarStuff::VT_MAYBE_U16, None)
+  }
+  #[inline]
+  pub fn default_u16(&self) -> u16 {
+    self._tab.get::<u16>(ScalarStuff::VT_DEFAULT_U16, Some(42)).unwrap()
+  }
+  #[inline]
+  pub fn just_i32(&self) -> i32 {
+    self._tab.get::<i32>(ScalarStuff::VT_JUST_I32, Some(0)).unwrap()
+  }
+  #[inline]
+  pub fn maybe_i32(&self) -> Option<i32> {
+    self._tab.get::<i32>(ScalarStuff::VT_MAYBE_I32, None)
+  }
+  #[inline]
+  pub fn default_i32(&self) -> i32 {
+    self._tab.get::<i32>(ScalarStuff::VT_DEFAULT_I32, Some(42)).unwrap()
+  }
+  #[inline]
+  pub fn just_u32(&self) -> u32 {
+    self._tab.get::<u32>(ScalarStuff::VT_JUST_U32, Some(0)).unwrap()
+  }
+  #[inline]
+  pub fn maybe_u32(&self) -> Option<u32> {
+    self._tab.get::<u32>(ScalarStuff::VT_MAYBE_U32, None)
+  }
+  #[inline]
+  pub fn default_u32(&self) -> u32 {
+    self._tab.get::<u32>(ScalarStuff::VT_DEFAULT_U32, Some(42)).unwrap()
+  }
+  #[inline]
+  pub fn just_i64(&self) -> i64 {
+    self._tab.get::<i64>(ScalarStuff::VT_JUST_I64, Some(0)).unwrap()
+  }
+  #[inline]
+  pub fn maybe_i64(&self) -> Option<i64> {
+    self._tab.get::<i64>(ScalarStuff::VT_MAYBE_I64, None)
+  }
+  #[inline]
+  pub fn default_i64(&self) -> i64 {
+    self._tab.get::<i64>(ScalarStuff::VT_DEFAULT_I64, Some(42)).unwrap()
+  }
+  #[inline]
+  pub fn just_u64(&self) -> u64 {
+    self._tab.get::<u64>(ScalarStuff::VT_JUST_U64, Some(0)).unwrap()
+  }
+  #[inline]
+  pub fn maybe_u64(&self) -> Option<u64> {
+    self._tab.get::<u64>(ScalarStuff::VT_MAYBE_U64, None)
+  }
+  #[inline]
+  pub fn default_u64(&self) -> u64 {
+    self._tab.get::<u64>(ScalarStuff::VT_DEFAULT_U64, Some(42)).unwrap()
+  }
+  #[inline]
+  pub fn just_f32(&self) -> f32 {
+    self._tab.get::<f32>(ScalarStuff::VT_JUST_F32, Some(0.0)).unwrap()
+  }
+  #[inline]
+  pub fn maybe_f32(&self) -> Option<f32> {
+    self._tab.get::<f32>(ScalarStuff::VT_MAYBE_F32, None)
+  }
+  #[inline]
+  pub fn default_f32(&self) -> f32 {
+    self._tab.get::<f32>(ScalarStuff::VT_DEFAULT_F32, Some(42.0)).unwrap()
+  }
+  #[inline]
+  pub fn just_f64(&self) -> f64 {
+    self._tab.get::<f64>(ScalarStuff::VT_JUST_F64, Some(0.0)).unwrap()
+  }
+  #[inline]
+  pub fn maybe_f64(&self) -> Option<f64> {
+    self._tab.get::<f64>(ScalarStuff::VT_MAYBE_F64, None)
+  }
+  #[inline]
+  pub fn default_f64(&self) -> f64 {
+    self._tab.get::<f64>(ScalarStuff::VT_DEFAULT_F64, Some(42.0)).unwrap()
+  }
+  #[inline]
+  pub fn just_bool(&self) -> bool {
+    self._tab.get::<bool>(ScalarStuff::VT_JUST_BOOL, Some(false)).unwrap()
+  }
+  #[inline]
+  pub fn maybe_bool(&self) -> Option<bool> {
+    self._tab.get::<bool>(ScalarStuff::VT_MAYBE_BOOL, None)
+  }
+  #[inline]
+  pub fn default_bool(&self) -> bool {
+    self._tab.get::<bool>(ScalarStuff::VT_DEFAULT_BOOL, Some(true)).unwrap()
+  }
+  #[inline]
+  pub fn just_enum(&self) -> OptionalByte {
+    self._tab.get::<OptionalByte>(ScalarStuff::VT_JUST_ENUM, Some(OptionalByte::None)).unwrap()
+  }
+  #[inline]
+  pub fn maybe_enum(&self) -> Option<OptionalByte> {
+    self._tab.get::<OptionalByte>(ScalarStuff::VT_MAYBE_ENUM, None)
+  }
+  #[inline]
+  pub fn default_enum(&self) -> OptionalByte {
+    self._tab.get::<OptionalByte>(ScalarStuff::VT_DEFAULT_ENUM, Some(OptionalByte::One)).unwrap()
+  }
+}
+
+pub struct ScalarStuffArgs {
+    pub just_i8: i8,
+    pub maybe_i8: Option<i8>,
+    pub default_i8: i8,
+    pub just_u8: u8,
+    pub maybe_u8: Option<u8>,
+    pub default_u8: u8,
+    pub just_i16: i16,
+    pub maybe_i16: Option<i16>,
+    pub default_i16: i16,
+    pub just_u16: u16,
+    pub maybe_u16: Option<u16>,
+    pub default_u16: u16,
+    pub just_i32: i32,
+    pub maybe_i32: Option<i32>,
+    pub default_i32: i32,
+    pub just_u32: u32,
+    pub maybe_u32: Option<u32>,
+    pub default_u32: u32,
+    pub just_i64: i64,
+    pub maybe_i64: Option<i64>,
+    pub default_i64: i64,
+    pub just_u64: u64,
+    pub maybe_u64: Option<u64>,
+    pub default_u64: u64,
+    pub just_f32: f32,
+    pub maybe_f32: Option<f32>,
+    pub default_f32: f32,
+    pub just_f64: f64,
+    pub maybe_f64: Option<f64>,
+    pub default_f64: f64,
+    pub just_bool: bool,
+    pub maybe_bool: Option<bool>,
+    pub default_bool: bool,
+    pub just_enum: OptionalByte,
+    pub maybe_enum: Option<OptionalByte>,
+    pub default_enum: OptionalByte,
+}
+impl<'a> Default for ScalarStuffArgs {
+    #[inline]
+    fn default() -> Self {
+        ScalarStuffArgs {
+            just_i8: 0,
+            maybe_i8: None,
+            default_i8: 42,
+            just_u8: 0,
+            maybe_u8: None,
+            default_u8: 42,
+            just_i16: 0,
+            maybe_i16: None,
+            default_i16: 42,
+            just_u16: 0,
+            maybe_u16: None,
+            default_u16: 42,
+            just_i32: 0,
+            maybe_i32: None,
+            default_i32: 42,
+            just_u32: 0,
+            maybe_u32: None,
+            default_u32: 42,
+            just_i64: 0,
+            maybe_i64: None,
+            default_i64: 42,
+            just_u64: 0,
+            maybe_u64: None,
+            default_u64: 42,
+            just_f32: 0.0,
+            maybe_f32: None,
+            default_f32: 42.0,
+            just_f64: 0.0,
+            maybe_f64: None,
+            default_f64: 42.0,
+            just_bool: false,
+            maybe_bool: None,
+            default_bool: true,
+            just_enum: OptionalByte::None,
+            maybe_enum: None,
+            default_enum: OptionalByte::One,
+        }
+    }
+}
+pub struct ScalarStuffBuilder<'a: 'b, 'b> {
+  fbb_: &'b mut flatbuffers::FlatBufferBuilder<'a>,
+  start_: flatbuffers::WIPOffset<flatbuffers::TableUnfinishedWIPOffset>,
+}
+impl<'a: 'b, 'b> ScalarStuffBuilder<'a, 'b> {
+  #[inline]
+  pub fn add_just_i8(&mut self, just_i8: i8) {
+    self.fbb_.push_slot::<i8>(ScalarStuff::VT_JUST_I8, just_i8, 0);
+  }
+  #[inline]
+  pub fn add_maybe_i8(&mut self, maybe_i8: i8) {
+    self.fbb_.push_slot_always::<i8>(ScalarStuff::VT_MAYBE_I8, maybe_i8);
+  }
+  #[inline]
+  pub fn add_default_i8(&mut self, default_i8: i8) {
+    self.fbb_.push_slot::<i8>(ScalarStuff::VT_DEFAULT_I8, default_i8, 42);
+  }
+  #[inline]
+  pub fn add_just_u8(&mut self, just_u8: u8) {
+    self.fbb_.push_slot::<u8>(ScalarStuff::VT_JUST_U8, just_u8, 0);
+  }
+  #[inline]
+  pub fn add_maybe_u8(&mut self, maybe_u8: u8) {
+    self.fbb_.push_slot_always::<u8>(ScalarStuff::VT_MAYBE_U8, maybe_u8);
+  }
+  #[inline]
+  pub fn add_default_u8(&mut self, default_u8: u8) {
+    self.fbb_.push_slot::<u8>(ScalarStuff::VT_DEFAULT_U8, default_u8, 42);
+  }
+  #[inline]
+  pub fn add_just_i16(&mut self, just_i16: i16) {
+    self.fbb_.push_slot::<i16>(ScalarStuff::VT_JUST_I16, just_i16, 0);
+  }
+  #[inline]
+  pub fn add_maybe_i16(&mut self, maybe_i16: i16) {
+    self.fbb_.push_slot_always::<i16>(ScalarStuff::VT_MAYBE_I16, maybe_i16);
+  }
+  #[inline]
+  pub fn add_default_i16(&mut self, default_i16: i16) {
+    self.fbb_.push_slot::<i16>(ScalarStuff::VT_DEFAULT_I16, default_i16, 42);
+  }
+  #[inline]
+  pub fn add_just_u16(&mut self, just_u16: u16) {
+    self.fbb_.push_slot::<u16>(ScalarStuff::VT_JUST_U16, just_u16, 0);
+  }
+  #[inline]
+  pub fn add_maybe_u16(&mut self, maybe_u16: u16) {
+    self.fbb_.push_slot_always::<u16>(ScalarStuff::VT_MAYBE_U16, maybe_u16);
+  }
+  #[inline]
+  pub fn add_default_u16(&mut self, default_u16: u16) {
+    self.fbb_.push_slot::<u16>(ScalarStuff::VT_DEFAULT_U16, default_u16, 42);
+  }
+  #[inline]
+  pub fn add_just_i32(&mut self, just_i32: i32) {
+    self.fbb_.push_slot::<i32>(ScalarStuff::VT_JUST_I32, just_i32, 0);
+  }
+  #[inline]
+  pub fn add_maybe_i32(&mut self, maybe_i32: i32) {
+    self.fbb_.push_slot_always::<i32>(ScalarStuff::VT_MAYBE_I32, maybe_i32);
+  }
+  #[inline]
+  pub fn add_default_i32(&mut self, default_i32: i32) {
+    self.fbb_.push_slot::<i32>(ScalarStuff::VT_DEFAULT_I32, default_i32, 42);
+  }
+  #[inline]
+  pub fn add_just_u32(&mut self, just_u32: u32) {
+    self.fbb_.push_slot::<u32>(ScalarStuff::VT_JUST_U32, just_u32, 0);
+  }
+  #[inline]
+  pub fn add_maybe_u32(&mut self, maybe_u32: u32) {
+    self.fbb_.push_slot_always::<u32>(ScalarStuff::VT_MAYBE_U32, maybe_u32);
+  }
+  #[inline]
+  pub fn add_default_u32(&mut self, default_u32: u32) {
+    self.fbb_.push_slot::<u32>(ScalarStuff::VT_DEFAULT_U32, default_u32, 42);
+  }
+  #[inline]
+  pub fn add_just_i64(&mut self, just_i64: i64) {
+    self.fbb_.push_slot::<i64>(ScalarStuff::VT_JUST_I64, just_i64, 0);
+  }
+  #[inline]
+  pub fn add_maybe_i64(&mut self, maybe_i64: i64) {
+    self.fbb_.push_slot_always::<i64>(ScalarStuff::VT_MAYBE_I64, maybe_i64);
+  }
+  #[inline]
+  pub fn add_default_i64(&mut self, default_i64: i64) {
+    self.fbb_.push_slot::<i64>(ScalarStuff::VT_DEFAULT_I64, default_i64, 42);
+  }
+  #[inline]
+  pub fn add_just_u64(&mut self, just_u64: u64) {
+    self.fbb_.push_slot::<u64>(ScalarStuff::VT_JUST_U64, just_u64, 0);
+  }
+  #[inline]
+  pub fn add_maybe_u64(&mut self, maybe_u64: u64) {
+    self.fbb_.push_slot_always::<u64>(ScalarStuff::VT_MAYBE_U64, maybe_u64);
+  }
+  #[inline]
+  pub fn add_default_u64(&mut self, default_u64: u64) {
+    self.fbb_.push_slot::<u64>(ScalarStuff::VT_DEFAULT_U64, default_u64, 42);
+  }
+  #[inline]
+  pub fn add_just_f32(&mut self, just_f32: f32) {
+    self.fbb_.push_slot::<f32>(ScalarStuff::VT_JUST_F32, just_f32, 0.0);
+  }
+  #[inline]
+  pub fn add_maybe_f32(&mut self, maybe_f32: f32) {
+    self.fbb_.push_slot_always::<f32>(ScalarStuff::VT_MAYBE_F32, maybe_f32);
+  }
+  #[inline]
+  pub fn add_default_f32(&mut self, default_f32: f32) {
+    self.fbb_.push_slot::<f32>(ScalarStuff::VT_DEFAULT_F32, default_f32, 42.0);
+  }
+  #[inline]
+  pub fn add_just_f64(&mut self, just_f64: f64) {
+    self.fbb_.push_slot::<f64>(ScalarStuff::VT_JUST_F64, just_f64, 0.0);
+  }
+  #[inline]
+  pub fn add_maybe_f64(&mut self, maybe_f64: f64) {
+    self.fbb_.push_slot_always::<f64>(ScalarStuff::VT_MAYBE_F64, maybe_f64);
+  }
+  #[inline]
+  pub fn add_default_f64(&mut self, default_f64: f64) {
+    self.fbb_.push_slot::<f64>(ScalarStuff::VT_DEFAULT_F64, default_f64, 42.0);
+  }
+  #[inline]
+  pub fn add_just_bool(&mut self, just_bool: bool) {
+    self.fbb_.push_slot::<bool>(ScalarStuff::VT_JUST_BOOL, just_bool, false);
+  }
+  #[inline]
+  pub fn add_maybe_bool(&mut self, maybe_bool: bool) {
+    self.fbb_.push_slot_always::<bool>(ScalarStuff::VT_MAYBE_BOOL, maybe_bool);
+  }
+  #[inline]
+  pub fn add_default_bool(&mut self, default_bool: bool) {
+    self.fbb_.push_slot::<bool>(ScalarStuff::VT_DEFAULT_BOOL, default_bool, true);
+  }
+  #[inline]
+  pub fn add_just_enum(&mut self, just_enum: OptionalByte) {
+    self.fbb_.push_slot::<OptionalByte>(ScalarStuff::VT_JUST_ENUM, just_enum, OptionalByte::None);
+  }
+  #[inline]
+  pub fn add_maybe_enum(&mut self, maybe_enum: OptionalByte) {
+    self.fbb_.push_slot_always::<OptionalByte>(ScalarStuff::VT_MAYBE_ENUM, maybe_enum);
+  }
+  #[inline]
+  pub fn add_default_enum(&mut self, default_enum: OptionalByte) {
+    self.fbb_.push_slot::<OptionalByte>(ScalarStuff::VT_DEFAULT_ENUM, default_enum, OptionalByte::One);
+  }
+  #[inline]
+  pub fn new(_fbb: &'b mut flatbuffers::FlatBufferBuilder<'a>) -> ScalarStuffBuilder<'a, 'b> {
+    let start = _fbb.start_table();
+    ScalarStuffBuilder {
+      fbb_: _fbb,
+      start_: start,
+    }
+  }
+  #[inline]
+  pub fn finish(self) -> flatbuffers::WIPOffset<ScalarStuff<'a>> {
+    let o = self.fbb_.end_table(self.start_);
+    flatbuffers::WIPOffset::new(o.value())
+  }
+}
+
+impl std::fmt::Debug for ScalarStuff<'_> {
+  fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
+    let mut ds = f.debug_struct("ScalarStuff");
+      ds.field("just_i8", &self.just_i8());
+      ds.field("maybe_i8", &self.maybe_i8());
+      ds.field("default_i8", &self.default_i8());
+      ds.field("just_u8", &self.just_u8());
+      ds.field("maybe_u8", &self.maybe_u8());
+      ds.field("default_u8", &self.default_u8());
+      ds.field("just_i16", &self.just_i16());
+      ds.field("maybe_i16", &self.maybe_i16());
+      ds.field("default_i16", &self.default_i16());
+      ds.field("just_u16", &self.just_u16());
+      ds.field("maybe_u16", &self.maybe_u16());
+      ds.field("default_u16", &self.default_u16());
+      ds.field("just_i32", &self.just_i32());
+      ds.field("maybe_i32", &self.maybe_i32());
+      ds.field("default_i32", &self.default_i32());
+      ds.field("just_u32", &self.just_u32());
+      ds.field("maybe_u32", &self.maybe_u32());
+      ds.field("default_u32", &self.default_u32());
+      ds.field("just_i64", &self.just_i64());
+      ds.field("maybe_i64", &self.maybe_i64());
+      ds.field("default_i64", &self.default_i64());
+      ds.field("just_u64", &self.just_u64());
+      ds.field("maybe_u64", &self.maybe_u64());
+      ds.field("default_u64", &self.default_u64());
+      ds.field("just_f32", &self.just_f32());
+      ds.field("maybe_f32", &self.maybe_f32());
+      ds.field("default_f32", &self.default_f32());
+      ds.field("just_f64", &self.just_f64());
+      ds.field("maybe_f64", &self.maybe_f64());
+      ds.field("default_f64", &self.default_f64());
+      ds.field("just_bool", &self.just_bool());
+      ds.field("maybe_bool", &self.maybe_bool());
+      ds.field("default_bool", &self.default_bool());
+      ds.field("just_enum", &self.just_enum());
+      ds.field("maybe_enum", &self.maybe_enum());
+      ds.field("default_enum", &self.default_enum());
+      ds.finish()
+  }
+}
+#[inline]
+pub fn get_root_as_scalar_stuff<'a>(buf: &'a [u8]) -> ScalarStuff<'a> {
+  flatbuffers::get_root::<ScalarStuff<'a>>(buf)
+}
+
+#[inline]
+pub fn get_size_prefixed_root_as_scalar_stuff<'a>(buf: &'a [u8]) -> ScalarStuff<'a> {
+  flatbuffers::get_size_prefixed_root::<ScalarStuff<'a>>(buf)
+}
+
+pub const SCALAR_STUFF_IDENTIFIER: &str = "NULL";
+
+#[inline]
+pub fn scalar_stuff_buffer_has_identifier(buf: &[u8]) -> bool {
+  flatbuffers::buffer_has_identifier(buf, SCALAR_STUFF_IDENTIFIER, false)
+}
+
+#[inline]
+pub fn scalar_stuff_size_prefixed_buffer_has_identifier(buf: &[u8]) -> bool {
+  flatbuffers::buffer_has_identifier(buf, SCALAR_STUFF_IDENTIFIER, true)
+}
+
+pub const SCALAR_STUFF_EXTENSION: &str = "mon";
+
+#[inline]
+pub fn finish_scalar_stuff_buffer<'a, 'b>(
+    fbb: &'b mut flatbuffers::FlatBufferBuilder<'a>,
+    root: flatbuffers::WIPOffset<ScalarStuff<'a>>) {
+  fbb.finish(root, Some(SCALAR_STUFF_IDENTIFIER));
+}
+
+#[inline]
+pub fn finish_size_prefixed_scalar_stuff_buffer<'a, 'b>(fbb: &'b mut flatbuffers::FlatBufferBuilder<'a>, root: flatbuffers::WIPOffset<ScalarStuff<'a>>) {
+  fbb.finish_size_prefixed(root, Some(SCALAR_STUFF_IDENTIFIER));
+}
+}  // pub mod optional_scalars
+