class GeoHash(expression, precision=None, **extra)  
Availability: PostGIS, SpatiaLite (≥ 4.0, LWGEOM)
Accepts a single geographic field or expression and returns a GeoHash representation of the geometry.
The precision keyword argument controls the number of characters in the result.
 Changed in Django 1.10: 
                  
    		
    		
    		
    		
    		
            		
    		
    		
    	SpatiaLite support was added.
 
          
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