<put algortithm description here>
Points
[vector: point]Attribute
[tablefield: any]Target Grid
[selection]<put parameter description here>
Options:
Default: 0
Resolution
[number]<put parameter description here>
Default: 1.0
Output extent
[extent]<put parameter description here>
Default: 0,1,0,1
Cellsize
[number]<put parameter description here>
Default: 100.0
Grid
[raster]processing.runalg('saga:bsplineapproximation', shapes, field, target, level, output_extent, user_size, user_grid)