> ## Documentation Index > Fetch the complete documentation index at: https://docs.ag2.ai/llms.txt > Use this file to discover all available pages before exploring further. # autogen.fast_depends.core.CallModel

CallModel

```python theme={null} CallModel( call: Callable[~P, ~T] | Callable[~P, Awaitable[~T]], model: Type[BaseModel] | None, params: Dict[str, Tuple[Any, Any]], response_model: Type[ResponseModel] | None = None, use_cache: bool = True, cast: bool = True, is_async: bool = False, is_generator: bool = False, dependencies: Dict[str, ForwardRef('CallModel[..., Any]')] | None = None, extra_dependencies: Iterable[ForwardRef('CallModel[..., Any]')] | None = None, keyword_args: List[str] | None = None, positional_args: List[str] | None = None, var_positional_arg: str | None = None, var_keyword_arg: str | None = None, custom_fields: Dict[str, CustomField] | None = None ) ``` Abstract base class for generic types.
On Python 3.12 and newer, generic classes implicitly inherit from Generic when they declare a parameter list after the class's name::
class Mapping\[KT, VT]:
def **getitem**(self, key: KT) -> VT:
...
# Etc.
On older versions of Python, however, generic classes have to explicitly inherit from Generic.
After a class has been declared to be generic, it can then be used as follows::
def lookup\_name\[KT, VT]\(mapping: Mapping\[KT, VT], key: KT, default: VT) -> VT:
try:
return mapping\[key] except KeyError:
return default Parameters: | Name | Description | | -------------------- | -------------------------------------------------------------------------------------------------------------------------------------------------------- | | `call` | **Type:** Callable\[\~P, \~T] \| Callable\[\~P, Awaitable\[\~T]] | | `model` | **Type:** Type\[pydantic.main.BaseModel] \| None | | `params` | **Type:** Dict\[str, Tuple\[Any, Any]] | | `response_model` | **Type:** Type\[[ResponseModel](/docs/api-reference/autogen/fast_depends/core/model/ResponseModel)] \| None

**Default:** None | | `use_cache` | **Type:** bool

**Default:** True | | `cast` | **Type:** bool

**Default:** True | | `is_async` | **Type:** bool

**Default:** False | | `is_generator` | **Type:** bool

**Default:** False | | `dependencies` | **Type:** Dict\[str, ForwardRef('[CallModel](/docs/api-reference/autogen/fast_depends/core/CallModel)\[..., Any]')] \| None

**Default:** None | | `extra_dependencies` | **Type:** Iterable\[ForwardRef('[CallModel](/docs/api-reference/autogen/fast_depends/core/CallModel)\[..., Any]')] \| None

**Default:** None | | `keyword_args` | **Type:** List\[str] \| None

**Default:** None | | `positional_args` | **Type:** List\[str] \| None

**Default:** None | | `var_positional_arg` | **Type:** str \| None

**Default:** None | | `var_keyword_arg` | **Type:** str \| None

**Default:** None | | `custom_fields` | **Type:** Dict\[str, [CustomField](/docs/api-reference/autogen/fast_depends/library/model/CustomField)] \| None

**Default:** None | ### Instance Attributes #### alias\_arguments

#### call

#### call\_name

#### cast

#### custom\_fields

#### dependencies

#### extra\_dependencies

#### flat\_dependencies

#### flat\_params

#### is\_async

#### is\_generator

#### keyword\_args

#### model

#### params

#### positional\_args

#### response\_model

#### sorted\_dependencies

#### use\_cache

#### var\_keyword\_arg

#### var\_positional\_arg

### Instance Methods #### asolve ```python theme={null} asolve( self, /, *args: Any, stack: AsyncExitStack, cache_dependencies: Dict[Callable[~P, ~T] | Callable[~P, Awaitable[~T]], ~T], dependency_overrides: Dict[Callable[~P, ~T] | Callable[~P, Awaitable[~T]], Callable[~P, ~T] | Callable[~P, Awaitable[~T]]] | None = None, nested: bool = False, **kwargs: Any ) -> ~T ``` Parameters: | Name | Description | | ---------------------- | -------------------------------------------------------------------------------------------------------------------------------------------------------------------- | | `/` | | | `*args` | **Type:** Any | | `stack` | **Type:** contextlib.AsyncExitStack | | `cache_dependencies` | **Type:** Dict\[Callable\[\~P, \~T] \| Callable\[\~P, Awaitable\[\~T]], \~T] | | `dependency_overrides` | **Type:** Dict\[Callable\[\~P, \~T] \| Callable\[\~P, Awaitable\[\~T]], Callable\[\~P, \~T] \| Callable\[\~P, Awaitable\[\~T]]] \| None

**Default:** None | | `nested` | **Type:** bool

**Default:** False | | `**kwargs` | **Type:** Any |
#### solve ```python theme={null} solve( self, /, *args: Any, stack: ExitStack, cache_dependencies: Dict[Callable[~P, ~T] | Callable[~P, Awaitable[~T]], ~T], dependency_overrides: Dict[Callable[~P, ~T] | Callable[~P, Awaitable[~T]], Callable[~P, ~T] | Callable[~P, Awaitable[~T]]] | None = None, nested: bool = False, **kwargs: Any ) -> ~T ``` Parameters: | Name | Description | | ---------------------- | -------------------------------------------------------------------------------------------------------------------------------------------------------------------- | | `/` | | | `*args` | **Type:** Any | | `stack` | **Type:** contextlib.ExitStack | | `cache_dependencies` | **Type:** Dict\[Callable\[\~P, \~T] \| Callable\[\~P, Awaitable\[\~T]], \~T] | | `dependency_overrides` | **Type:** Dict\[Callable\[\~P, \~T] \| Callable\[\~P, Awaitable\[\~T]], Callable\[\~P, \~T] \| Callable\[\~P, Awaitable\[\~T]]] \| None

**Default:** None | | `nested` | **Type:** bool

**Default:** False | | `**kwargs` | **Type:** Any |