Convertion Table

Doing
Arturo Types	Python Types	Notes
`:word`	`str`	interpreted as a str
`:label`		is a `dict`'s key, always needs a r-value
`:string` (simple)	`str`
`:char`	`str`	chars in Python are intepreted as `str`
`:integer`	`int`
`:floating`	`float`	`d.` is an `:integer`
`:rational`	`(int, int)`
`:logical`	`bool`	Supported via macros: '!true', '!false' and '!maybe'
`:color`	`str`
`:block`	`list`	can't assign values
`:dictionary`	`dict`	gets pairs of kind (:label :any)

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