Gets and sets the property EnvironmentId.
The ID of the environment of the requested data.
If no such environment is found, 
CopyC# returns
an RequestEnvironmentInfo
CopyC# error.
InvalidParameterValue
Condition: You must specify either this or an EnvironmentName, or both.
If you do not specify either, AWS Elastic Beanstalk returns CopyC#
error.
MissingRequiredParameter
Declaration Syntax| C# |
public string EnvironmentId { get; set; }