public KnowledgeGraph( 
   KnowledgeGraphConnectionProperties connectionProperties
)

string url =
  @"https://acme.server.com/server/rest/services/Hosted/AcmeKnowledgeGraph/KnowledgeGraphServer";

QueuedTask.Run(() =>
{
  //Create a connection properties
  var kg_props =
      new KnowledgeGraphConnectionProperties(new Uri(url));
  try
  {
    //Open a connection
    using (var kg = new KnowledgeGraph(kg_props))
    {
      //TODO...use the KnowledgeGraph
    }
  }
  catch (GeodatabaseNotFoundOrOpenedException ex)
  {
    System.Diagnostics.Debug.WriteLine(ex.ToString());
  }
});

QueuedTask.Run(() =>
{
  //Create a connection properties
  var kg_props =
      new KnowledgeGraphConnectionProperties(new Uri(url));
  //Connect to the KnowledgeGraph datastore
  //KnowledgeGraph datastores contain tables and feature classes
  using (var kg = new KnowledgeGraph(kg_props))
  {
    //Get the featureclass definitions from the KG datastore
    var fc_defs = kg.GetDefinitions<FeatureClassDefinition>();
    //For each feature class definition, get the corresponding
    //feature class. Note: The name of the feature class will match 
    //the name of its corresponding KnowledgeGraph named object type
    //in the KnowledgeGraph graph data model
    foreach (var fc_def in fc_defs)
    {
      var fc_name = fc_def.GetName();
      using (var fc = kg.OpenDataset<FeatureClass>(fc_name))
      {
        //TODO - use the feature class
      }
    }
  }
});

QueuedTask.Run(() =>
{
  //Create a connection properties
  var kg_props =
      new KnowledgeGraphConnectionProperties(new Uri(url));
  //Connect to the KnowledgeGraph datastore
  //KnowledgeGraph datastores contain tables and feature classes
  using (var kg = new KnowledgeGraph(kg_props))
  {
    //Get the table definitions from the KG datastore
    var tbl_defs = kg.GetDefinitions<TableDefinition>();
    //For each table definition, get the corresponding
    //table. Note: The name of the table will match the name
    //of its corresponding KnowledgeGraph named object type in
    //the KnowledgeGraph graph data model
    foreach (var tbl_def in tbl_defs)
    {
      var tbl_name = tbl_def.GetName();
      using (var fc = kg.OpenDataset<Table>(tbl_name))
      {
        //TODO - use the table
      }
    }
  }
});