---
layout: default-layout
title: class ObservationParameters - Dynamsoft Core Module Python Edition API Reference
description: API reference for the ObservationParameters class in Dynamsoft Core Module Python Edition, which configures what intermediate result types are observed and passed to the receiver.
keywords: intermediate result, python
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---

# ObservationParameters

The `ObservationParameters` class is used to set filter conditions for the `IntermediateResultReceiver`, so that only intermediate results meeting specific conditions will be called back.

## Definition

*Module:* core

```python
class ObservationParameters 
```

## Methods

| Method               | Description |
|----------------------|-------------|
| [`set_observed_result_unit_types`](#set_observed_result_unit_types) | Sets the types of intermediate result units that have been observed.|
| [`get_observed_result_unit_types`](#get_observed_result_unit_types) | Gets the types of intermediate result units that have been observed. |
| [`is_result_unit_type_observed`](#is_result_unit_type_observed) | Determines whether the specified result unit type was observed. |
| [`add_observed_task`](#add_observed_task) | Adds observed task name to be notified when relevant results are available. |
| [`remove_observed_task`](#remove_observed_task) | Remove the observed task name so that intermediate results generated by the task are not notified. |
| [`is_task_observed`](#is_task_observed) | Determines whether the specified task was observed. |
| [`set_result_unit_types_only_for_input`](#set_result_unit_types_only_for_input) | Sets the types of intermediate result unit that indicates skipping default calculations and replacing with input data units. |
| [`get_result_unit_types_only_for_input`](#get_result_unit_types_only_for_input) | Gets the types of intermediate result unit that indicates skipping default calculations and replacing with input data units. |
| [`is_result_unit_type_only_for_input`](#is_result_unit_type_only_for_input) | Determines whether the specified type of intermediate result unit indicates skipping default calculations and replacing with input data units. |

### set_observed_result_unit_types

Sets the types of intermediate result units that have been observed.

```python
def set_observed_result_unit_types(self, types: int) -> None:
```

**Parameters**

`types` The observed types of intermediate result units. This is a bitwise OR combination of one or more values from the `EnumIntermediateResultUnitType` enumeration.

**See Also**

[EnumIntermediateResultUnitType]({{ site.dcvb_python_api }}core/enum-intermediate-result-unit-type.html)

### get_observed_result_unit_types

Gets the types of intermediate result units that have been observed.

```python
def get_observed_result_unit_types(self) -> int:
```

**Return value**

The observed types of intermediate result units. This is a bitwise OR combination of one or more values from the `EnumIntermediateResultUnitType` enumeration.

**See Also**

[EnumIntermediateResultUnitType]({{ site.dcvb_python_api }}core/enum-intermediate-result-unit-type.html)

### is_result_unit_type_observed

Determines whether the specified result unit type was observed.

```python
def is_result_unit_type_observed(self, type: int) -> bool:
```

**Parameters**

`type` The type of intermediate result units. This is one of the values of the `EnumIntermediateResultUnitType` enumeration.

**Return value**

Returns a boolean value indicating whether the specified result unit type was observed.

**See Also**

[EnumIntermediateResultUnitType]({{ site.dcvb_python_api }}core/enum-intermediate-result-unit-type.html)

### add_observed_task

Adds observed task name to be notified when relevant results are available.

```python
def add_observed_task(self, task_name: str) ->None:
```

**Parameters**

`task_name` The specified task name.

### remove_observed_task

Remove the observed task name so that intermediate results generated by the task are not notified.

```python
def remove_observed_task(self, task_name: str) -> None:
```

**Parameters**

`task_name` The specified task name.

### is_task_observed

Determines whether the specified task was observed.

```python
def is_task_observed(self, task_name: str) -> bool:
```

**Parameters**

`task_name` The specified task name.

**Return value**

Returns a boolean value indicating whether the specified task was observed.

### set_result_unit_types_only_for_input

Sets the types of intermediate result unit that indicates skipping default calculations and replacing with input data units.

```python
def set_result_unit_types_only_for_input(self, types: int) -> None:
```

**Parameters**

`types`: The types of intermediate result units. This is a bitwise OR combination of one or more values from the `EnumIntermediateResultUnitType` enumeration.

**See Also**

[EnumIntermediateResultUnitType]({{ site.dcvb_python_api }}core/enum-intermediate-result-unit-type.html)

### get_result_unit_types_only_for_input

Gets the types of intermediate result unit that indicates skipping default calculations and replacing with input data units.

```python
def get_result_unit_types_only_for_input(self) -> int:
```

**Return**

Returns the types of intermediate result units. This is a bitwise OR combination of one or more values from the `EnumIntermediateResultUnitType` enumeration.

**See Also**

[EnumIntermediateResultUnitType]({{ site.dcvb_python_api }}core/enum-intermediate-result-unit-type.html)

### is_result_unit_type_only_for_input

Determines whether the specified type of intermediate result unit indicates skipping default calculations and replacing with input data units.

```python
def is_result_unit_type_only_for_input(self, type: int) -> bool:
```

**Parameters**

`type`: The type of intermediate result unit to check. This is one of the values of the `EnumIntermediateResultUnitType` enumeration.

**Return**

Returns a boolean value indicating whether the specified type of intermediate result unit indicates skipping default calculations and replacing with input data units.

**See Also**

[EnumIntermediateResultUnitType]({{ site.dcvb_python_api }}core/enum-intermediate-result-unit-type.html)