ReadWriteTimeout property missing from AmazonBedrockRuntimeConfig

[amaralenzo]

Describe the bug

When attempting to configure AmazonBedrockRuntimeConfig with the ReadWriteTimeout property as shown in the official documentation, the compiler throws an error stating that the property does not exist. The AWS SDK documentation clearly states this property should be inherited from Amazon.Runtime.ClientConfig, but it's not accessible in practice.

Regression Issue

• Select this option if this issue appears to be a regression.

Expected Behavior

The ReadWriteTimeout property should be available on AmazonBedrockRuntimeConfig as documented:

• Property should be settable with System.Nullable<System.TimeSpan> values
• Should inherit from Amazon.Runtime.ClientConfig like other AWS service configurations
• Should allow fine-grained control over read/write timeouts for Bedrock operations

var config = new AmazonBedrockRuntimeConfig
{
    RegionEndpoint = RegionEndpoint.USEast1,
    Timeout = TimeSpan.FromMinutes(20),
    MaxErrorRetry = 3,
    RetryMode = Amazon.Runtime.RequestRetryMode.Adaptive,
    ReadWriteTimeout = TimeSpan.FromMinutes(20), // This should work
};

Current Behavior

Compilation fails with the following error:

CS0117: 'AmazonBedrockRuntimeConfig' does not contain a definition for 'ReadWriteTimeout'

The property is completely unavailable, forcing developers to remove it and rely only on the general Timeout property, which may not provide adequate control for long-running AI model inference requests.

Reproduction Steps

1. Create a new .NET project
2. Install AWSSDK.BedrockRuntime package (version 4.0.2 or 4.0.2.1)
3. Add the following code:

using Amazon;
using Amazon.BedrockRuntime;

var config = new AmazonBedrockRuntimeConfig
{
    RegionEndpoint = RegionEndpoint.USEast1,
    Timeout = TimeSpan.FromMinutes(10),
    ReadWriteTimeout = TimeSpan.FromMinutes(20), // Compilation error here
};

var client = new AmazonBedrockRuntimeClient(config);

Possible Solution

No response

Additional Information/Context

No response

AWS .NET SDK and/or Package version used

• Primary Package: AWSSDK.BedrockRuntime version 4.0.2.1
• Core Package: AWSSDK.Core version 4.0.0.17
• Issue reproduced with: Both 4.0.2 and 4.0.2.1 versions of BedrockRuntime

Targeted .NET Platform

.NET 9

Operating System and version

Windows 11

[boblodgett]

When using a version of the AWS SDK for .NET which targets .NET Framework the ReadWriteTimeout property exists but only works for non async calls. For all other targets where an async call is made, such as .NET 8, the way to set a timeout it to use the CancellationToken. Here is our developer guide documentation that has an example using the CancellationToken: https://docs.aws.amazon.com/sdk-for-net/v4/developer-guide/retries-timeouts.html#timeouts

However, our documentation site needs to be updated to reflect these differences. We have an internal backlog item to address this. I will keep this issue open until we address the backlog item.