> ## 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.
# client_waiter
# `prefect_aws.client_waiter`
Task for waiting on a long-running AWS job
## Functions
### `aclient_waiter`
```python theme={null}
aclient_waiter(client: str, waiter_name: str, aws_credentials: AwsCredentials, waiter_definition: Optional[Dict[str, Any]] = None, **waiter_kwargs: Optional[Dict[str, Any]])
```
Asynchronously uses the underlying boto3 waiter functionality.
**Args:**
* `client`: The AWS client on which to wait (e.g., 'client\_wait', 'ec2', etc).
* `waiter_name`: The name of the waiter to instantiate.
You may also use a custom waiter name, if you supply
an accompanying waiter definition dict.
* `aws_credentials`: Credentials to use for authentication with AWS.
* `waiter_definition`: A valid custom waiter model, as a dict. Note that if
you supply a custom definition, it is assumed that the provided
'waiter\_name' is contained within the waiter definition dict.
* `**waiter_kwargs`: Arguments to pass to the `waiter.wait(...)` method. Will
depend upon the specific waiter being called.
### `client_waiter`
```python theme={null}
client_waiter(client: str, waiter_name: str, aws_credentials: AwsCredentials, waiter_definition: Optional[Dict[str, Any]] = None, **waiter_kwargs: Optional[Dict[str, Any]])
```
Uses the underlying boto3 waiter functionality.
**Args:**
* `client`: The AWS client on which to wait (e.g., 'client\_wait', 'ec2', etc).
* `waiter_name`: The name of the waiter to instantiate.
You may also use a custom waiter name, if you supply
an accompanying waiter definition dict.
* `aws_credentials`: Credentials to use for authentication with AWS.
* `waiter_definition`: A valid custom waiter model, as a dict. Note that if
you supply a custom definition, it is assumed that the provided
'waiter\_name' is contained within the waiter definition dict.
* `**waiter_kwargs`: Arguments to pass to the `waiter.wait(...)` method. Will
depend upon the specific waiter being called.