Gets and sets the property JobFlowRole. 
            
            An IAM role for the job flow. The EC2 instances of the job flow assume this role.
            The default role is  CopyC#. In order to use the default role,
            you must have already created it using the CLI.
CopyC#. In order to use the default role,
            you must have already created it using the CLI.
            EMRJobflowDefault
 Declaration Syntax
 Declaration Syntax| C# | 
public string JobFlowRole { get; set; }