describeUserHierarchyStructure method
      
Future<DescribeUserHierarchyStructureResponse> 
describeUserHierarchyStructure({ 
    
- required String instanceId,
Describes the hierarchy structure of the specified Amazon Connect instance.
May throw InvalidRequestException. May throw InvalidParameterException. May throw ResourceNotFoundException. May throw ThrottlingException. May throw InternalServiceException.
Parameter instanceId :
The identifier of the Amazon Connect instance.
Implementation
Future<DescribeUserHierarchyStructureResponse>
    describeUserHierarchyStructure({
  required String instanceId,
}) async {
  ArgumentError.checkNotNull(instanceId, 'instanceId');
  _s.validateStringLength(
    'instanceId',
    instanceId,
    1,
    100,
    isRequired: true,
  );
  final response = await _protocol.send(
    payload: null,
    method: 'GET',
    requestUri:
        '/user-hierarchy-structure/${Uri.encodeComponent(instanceId)}',
    exceptionFnMap: _exceptionFns,
  );
  return DescribeUserHierarchyStructureResponse.fromJson(response);
}