# Base Class
## Table of Contents
- [Base](#base)
- [set\_attributes](#base.set_attributes)
- [annotations](#base.annotations)
- [get\_dict](#base.get_dict)
- [class\_vars](#base.class_vars)
- [dict](#base.dict)
### Base
```python
class Base
```
A base class for all data model classes in the aiomql package. This class provides a set of common methods
and attributes for all data model classes.
#### Class Attributes
| Name | Type | Description | Default |
|----------|--------------|-------------------------------------|---------|
| `mt5` | `MetaTrader` | An instance of the MetaTrader class | |
| `config` | `Config` | An instance of the Config class | |
### __init__
```python
def __init__(**kwargs)
```
#### Parameters:
| Name | Type | Description |
|----------|-------|---------------------------------------------------|
| `kwargs` | `Any` | Object attributes and values as keyword arguments |
### set_attributes
```python
def set_attributes(**kwargs)
```
Set keyword arguments as object attributes. Only sets attributes that have been annotated on the class body.
#### Parameters
| Name | Type | Description |
|----------|-------|---------------------------------------------------|
| `kwargs` | `Any` | Object attributes and values as keyword arguments |
#### Raises
| Exception | Description |
|------------------|-----------------------------------------------------------------------------------|
| `AttributeError` | When assigning an attribute that does not belong to the class or any parent class |
#### Notes
Only sets attributes that have been annotated on the class body.
### annotations
```python
@property
@cache
def annotations() -> dict
```
Class annotations from all ancestor classes and the current class.
#### Returns
| Type | Description |
|--------|-----------------------------------|
| `dict` | A dictionary of class annotations |
#### get\_dict
```python
def get_dict(exclude: set = None, include: set = None) -> dict
```
Returns class attributes as a dict, with the ability to filter
#### Parameters
| Name | Type | Description |
|-----------|-------|------------------------------------|
| `exclude` | `set` | A set of attributes to be excluded |
| `include` | `set` | Specific attributes to be returned |
#### Returns
| Type | Description |
|--------|--------------------------------------------|
| `dict` | A dictionary of specified class attributes |
#### Notes
You can only set either of include or exclude. If you set both, include will take precedence
### class\_vars
```python
@property
@cache
def class_vars()
```
Annotated class attributes
#### Returns
| Type | Description |
|--------|-------------------------------------------------------------------------------------------|
| `dict` | A dictionary of available class attributes in all ancestor classes and the current class. |
### dict
```python
@property
def dict() -> dict
```
All instance and class attributes as a dictionary, except those excluded in the Meta class.
#### Returns
| Type | Description |
|--------|-----------------------------------------------|
| `dict` | A dictionary of instance and class attributes |