> ## Documentation Index
> Fetch the complete documentation index at: https://docs.prefect.io/llms.txt
> Use this file to discover all available pages before exploring further.
# core
# `prefect.assets.core`
## Functions
### `add_asset_metadata`
```python theme={null}
add_asset_metadata(asset: str | Asset, metadata: dict[str, Any]) -> None
```
## Classes
### `AssetProperties`
Metadata properties to configure on an Asset
**Methods:**
#### `model_validate_list`
```python theme={null}
model_validate_list(cls, obj: Any) -> list[Self]
```
#### `reset_fields`
```python theme={null}
reset_fields(self: Self) -> Self
```
Reset the fields of the model that are in the `_reset_fields` set.
**Returns:**
* A new instance of the model with the reset fields.
### `Asset`
Assets are objects that represent materialized data,
providing a way to track lineage and dependencies.
**Methods:**
#### `add_metadata`
```python theme={null}
add_metadata(self, metadata: dict[str, Any]) -> None
```
#### `model_validate_list`
```python theme={null}
model_validate_list(cls, obj: Any) -> list[Self]
```
#### `reset_fields`
```python theme={null}
reset_fields(self: Self) -> Self
```
Reset the fields of the model that are in the `_reset_fields` set.
**Returns:**
* A new instance of the model with the reset fields.