[mod] clean test_grammator, put helper in another file
[mod] docstring to grammator test for better readability
[mod] default value for space()
[mod] new helper for 'as'
[enh] handle 'as' case for dotted name
[enh] yay, 'import a, b' is workinggit add -p
[mod] overkill error output for tests
[mod] test for 'import a, b as c'
[mod] another test for import
[enh] yay 'from a import b'