Python 使用boto3的web身份担任角色

是否有使用boto3执行以下命令的等效方法

$ aws sts assume-role-with-web-identity \
 --role-arn $AWS_ROLE_ARN \
 --role-session-name mh9test \
 --web-identity-token file://$AWS_WEB_IDENTITY_TOKEN_FILE \
 --duration-seconds 1000 > /tmp/irp-cred.txt
$ export AWS_ACCESS_KEY_ID="$(cat /tmp/irp-cred.txt | jq -r ".Credentials.AccessKeyId")"
$ export AWS_SECRET_ACCESS_KEY="$(cat /tmp/irp-cred.txt | jq -r ".Credentials.SecretAccessKey")"
$ export AWS_SESSION_TOKEN="$(cat /tmp/irp-cred.txt | jq -r ".Credentials.SessionToken")"
$ rm /tmp/irp-cred.txt

以下语法中存在以下错误：

response = client.assume_role_with_web_identity(
    RoleArn='string',
    RoleSessionName='string',
    WebIdentityToken='string',
    ProviderId='string',
    PolicyArns=[
        {
            'arn': 'string'
        },
    ],
    Policy='string',
    DurationSeconds=123
)