# Slot: class_reference 


_Direct class reference (alternative to pipeline). Use for external library classes like tvboptim.Bold, custom monitors, or any callable class. The class is instantiated with constructor_args and called with call_args. Example: {name: Bold, module: tvboptim.observations.tvb_monitors.bold, constructor_args: [{name: period, value: 1000.0}]}_



<div data-search-exclude markdown="1">



URI: [tvbo:slot/class_reference](https://w3id.org/tvbo/slot/class_reference)
<!-- no inheritance hierarchy -->





## Applicable Classes

| Name | Description | Modifies Slot |
| --- | --- | --- |
| [Observation](../classes/Observation.qmd) | Unified class for all observation/measurement specifications |  no  |






## Properties

### Type and Range

| Property | Value |
| --- | --- |
| Range | [ClassReference](../classes/ClassReference.qmd) |
| Domain Of | [Observation](../classes/Observation.qmd) |

### Cardinality and Requirements

| Property | Value |
| --- | --- |
### Slot Characteristics

| Property | Value |
| --- | --- |
| Owner | [Observation](../classes/Observation.qmd) |












## Identifier and Mapping Information





### Schema Source


* from schema: https://w3id.org/tvbo




## Mappings

| Mapping Type | Mapped Value |
| ---  | ---  |
| self | tvbo:class_reference |
| native | tvbo:class_reference |




## LinkML Source

<details>
```yaml
name: class_reference
description: 'Direct class reference (alternative to pipeline). Use for external library
  classes like tvboptim.Bold, custom monitors, or any callable class. The class is
  instantiated with constructor_args and called with call_args. Example: {name: Bold,
  module: tvboptim.observations.tvb_monitors.bold, constructor_args: [{name: period,
  value: 1000.0}]}'
from_schema: https://w3id.org/tvbo
rank: 1000
owner: Observation
domain_of:
- Observation
range: ClassReference
inlined: true

```
</details></div>