AWS SDK for .NET Documentation
Input Property
AmazonAmazon.SimpleWorkflow.ModelStartWorkflowExecutionRequestInput Did this page help you?   Yes   No    Tell us about it...
The input for the workflow execution. This is a free form string which should be meaningful to the workflow you are starting. This input is made available to the new workflow execution in the WorkflowExecutionStarted history event.

Constraints:

Length
0 - 32768

Declaration Syntax
C#
public string Input { get; set; }

Assembly: AWSSDK (Module: AWSSDK) Version: 1.5.60.0 (1.5.60.0)