# Entity data serializers > Generated from the **26.3** decompile by `tools/gen_reference.py`. Do not edit by hand. Every `EntityDataSerializer` in `EntityDataSerializers`, in **registration order, which is the wire id** — `EntityDataSerializers.registerSerializer` pushes each one into a `CrudeIncrementalIntIdentityHashBiMap` that hands out the next int. A `SynchedEntityData.DataValue` on the wire is an unsigned byte accessor id, this var-int, and the encoded value. *For value type* marks the ones built by `EntityDataSerializer.forValueType`, the immutable case where `EntityDataSerializer.copy` is identity. See [Synched entity data](../systems/entities/synched-entity-data). 44 serializers, wire ids 0 to 43 | id | constant | value type | built by | |---:|---|---|---| | 0 | `EntityDataSerializers.BYTE` | `Byte` | for value type | | 1 | `EntityDataSerializers.INT` | `Integer` | for value type | | 2 | `EntityDataSerializers.LONG` | `Long` | for value type | | 3 | `EntityDataSerializers.FLOAT` | `Float` | for value type | | 4 | `EntityDataSerializers.STRING` | `String` | for value type | | 5 | `EntityDataSerializers.COMPONENT` | `Component` | for value type | | 6 | `EntityDataSerializers.OPTIONAL_COMPONENT` | `Optional` | for value type | | 7 | `EntityDataSerializers.ITEM_STACK` | `ItemStack` | an anonymous subclass | | 8 | `EntityDataSerializers.BOOLEAN` | `Boolean` | for value type | | 9 | `EntityDataSerializers.ROTATIONS` | `Rotations` | for value type | | 10 | `EntityDataSerializers.BLOCK_POS` | `BlockPos` | for value type | | 11 | `EntityDataSerializers.OPTIONAL_BLOCK_POS` | `Optional` | for value type | | 12 | `EntityDataSerializers.DIRECTION` | `Direction` | for value type | | 13 | `EntityDataSerializers.OPTIONAL_LIVING_ENTITY_REFERENCE` | `Optional>` | for value type | | 14 | `EntityDataSerializers.BLOCK_STATE` | `BlockState` | for value type | | 15 | `EntityDataSerializers.OPTIONAL_BLOCK_STATE` | `Optional` | for value type | | 16 | `EntityDataSerializers.PARTICLE` | `ParticleOptions` | for value type | | 17 | `EntityDataSerializers.PARTICLES` | `List` | for value type | | 18 | `EntityDataSerializers.VILLAGER_DATA` | `VillagerData` | for value type | | 19 | `EntityDataSerializers.OPTIONAL_UNSIGNED_INT` | `OptionalInt` | for value type | | 20 | `EntityDataSerializers.POSE` | `Pose` | for value type | | 21 | `EntityDataSerializers.CAT_VARIANT` | `Holder` | for value type | | 22 | `EntityDataSerializers.CAT_SOUND_VARIANT` | `Holder` | for value type | | 23 | `EntityDataSerializers.COW_VARIANT` | `Holder` | for value type | | 24 | `EntityDataSerializers.COW_SOUND_VARIANT` | `Holder` | for value type | | 25 | `EntityDataSerializers.WOLF_VARIANT` | `Holder` | for value type | | 26 | `EntityDataSerializers.WOLF_SOUND_VARIANT` | `Holder` | for value type | | 27 | `EntityDataSerializers.FROG_VARIANT` | `Holder` | for value type | | 28 | `EntityDataSerializers.PIG_VARIANT` | `Holder` | for value type | | 29 | `EntityDataSerializers.PIG_SOUND_VARIANT` | `Holder` | for value type | | 30 | `EntityDataSerializers.CHICKEN_VARIANT` | `Holder` | for value type | | 31 | `EntityDataSerializers.CHICKEN_SOUND_VARIANT` | `Holder` | for value type | | 32 | `EntityDataSerializers.ZOMBIE_NAUTILUS_VARIANT` | `Holder` | for value type | | 33 | `EntityDataSerializers.OPTIONAL_GLOBAL_POS` | `Optional` | for value type | | 34 | `EntityDataSerializers.PAINTING_VARIANT` | `Holder` | for value type | | 35 | `EntityDataSerializers.SNIFFER_STATE` | `Sniffer.State` | for value type | | 36 | `EntityDataSerializers.ARMADILLO_STATE` | `Armadillo.ArmadilloState` | for value type | | 37 | `EntityDataSerializers.COPPER_GOLEM_STATE` | `CopperGolemState` | for value type | | 38 | `EntityDataSerializers.WEATHERING_COPPER_STATE` | `WeatheringCopper.WeatherState` | for value type | | 39 | `EntityDataSerializers.VECTOR3` | `Vector3fc` | for value type | | 40 | `EntityDataSerializers.QUATERNION` | `Quaternionfc` | for value type | | 41 | `EntityDataSerializers.RESOLVABLE_PROFILE` | `ResolvableProfile` | for value type | | 42 | `EntityDataSerializers.HUMANOID_ARM` | `HumanoidArm` | for value type | | 43 | `EntityDataSerializers.DYE_COLOR` | `DyeColor` | for value type |