/// <summary>
/// Adds some headEndItem to the aggregation {@link #getHeadEndItems headEndItems}.
/// </summary>
/// <param name="oHeadEndItem">The headEndItem to add; if empty, nothing is inserted</param>
/// <returns>Reference to <code>this</code> in order to allow method chaining</returns>
public extern virtual sap.ui.unified.Shell addHeadEndItem(sap.ui.unified.ShellHeadItem oHeadEndItem);
/// <summary>
/// Checks for the provided <code>sap.ui.unified.ShellHeadItem</code> in the aggregation {@link #getHeadEndItems headEndItems}. and returns its index if found or -1 otherwise.
/// </summary>
/// <param name="oHeadEndItem">The headEndItem whose index is looked for</param>
/// <returns>The index of the provided control in the aggregation if found, or -1 otherwise</returns>
public extern virtual int indexOfHeadEndItem(sap.ui.unified.ShellHeadItem oHeadEndItem);
/// <summary>
/// Inserts a headEndItem into the aggregation {@link #getHeadEndItems headEndItems}.
/// </summary>
/// <param name="oHeadEndItem">The headEndItem to insert; if empty, nothing is inserted</param>
/// <param name="iIndex">The <code>0</code>-based index the headEndItem should be inserted at; for a negative value of <code>iIndex</code>, the headEndItem is inserted at position 0; for a value greater than the current size of the aggregation, the headEndItem is inserted at the last position</param>
/// <returns>Reference to <code>this</code> in order to allow method chaining</returns>
public extern virtual sap.ui.unified.Shell insertHeadEndItem(sap.ui.unified.ShellHeadItem oHeadEndItem, int iIndex);