code: func (obj *GenericObject) ExpandLeft(ctx context.Context, path string, row int, col int, all bool) error {
  	err := obj.rpc(ctx, "ExpandLeft", nil, path, row, col, all)
  	return err 
  }
docs: // Expands the left dimensions of a pivot table. This method applies only to pivot tables that are not always fully expanded.
  // In the definition of the hypercube (in HyperCubeDef ), the parameter qAlwaysFullyExpanded must be set to false.
  //
  // Parameters:
  //
  // ◾ path   -   Path to the definition of the object to be expanded.
  // For example, /qHyperCubeDef .
  //
  // ◾ row    -   Row index in the data matrix to expand.
  // Indexing starts from 0.
  //
  // ◾ col    -   Column index. The index is based on the left dimension indexes.
  // Indexing starts from 0.
  //
  // ◾ all    -   If set to true, it expands all cells.
  // Parameters qRow and qCol are not used if qAll is set to true, but they need to be set (for example to 0).
  //