fix var name and imports

docs/api.rst

@@ -33,8 +33,7 @@ In the current implementation, the *Pnts* class only contains a *FeatureTable*
 
 .. code-block:: python
 
-    >>> from py3dtiles import TileContentReader
-    >>> from py3dtiles import Pnts
+    >>> from py3dtiles import Pnts, TileContentReader
     >>>
     >>> filename = 'tests/pointCloudRGB.pnts'
     >>>
@@ -80,7 +79,7 @@ corresponding data type.
 
 .. code-block:: python
 
-    >>> from py3dtiles import Feature
+    >>> from py3dtiles import Feature, Pnts
     >>> import numpy as np
     >>>
     >>> # create the numpy dtype for positions with 32-bit floating point numbers
@@ -117,8 +116,7 @@ https://github.com/AnalyticalGraphicsInc/3d-tiles/tree/master/TileFormats/Batche
 
 .. code-block:: python
 
-    >>> from py3dtiles import TileContentReader
-    >>> from py3dtiles import B3dm
+    >>> from py3dtiles import B3dm, TileContentReader
     >>>
     >>> filename = 'tests/dragon_low.b3dm'
     >>>
@@ -130,7 +128,7 @@ https://github.com/AnalyticalGraphicsInc/3d-tiles/tree/master/TileFormats/Batche
     <py3dtiles.tile_content.TileContent>
     >>>
     >>> # extract information about the tile header
-    >>> th = tile.header
+    >>> th = tile_content.header
     >>> th
     <py3dtiles.b3dm.B3dmHeader>
     >>> th.magic_value
@@ -155,7 +153,7 @@ file containing polyhedralsurfaces or multipolygons.
 .. code-block:: python
 
     >>> import numpy as np
-    >>> from py3dtiles import GlTF, TriangleSoup
+    >>> from py3dtiles import B3dm, GlTF, TriangleSoup
     >>>
     >>> # load a wkb file
     >>> wkb = open('tests/building.wkb', 'rb').read()
@@ -183,7 +181,7 @@ file containing polyhedralsurfaces or multipolygons.
     >>> gltf = GlTF.from_binary_arrays([geometry], transform)
     >>>
     >>> # create a b3dm tile_content directly from the glTF.
-    >>> t = B3dm.from_glTF(glTF)
+    >>> t = B3dm.from_glTF(gltf)
     >>>
     >>> # to save our tile as a .b3dm file
     >>> t.save_as("mymodel.b3dm")