Quick Docstrings in Colaboratory

This is what helped me e.g. Image( and then CTRL+Shift+Space bar do it with only one bracket.

Shift-tab dedents. To see contextual help inline, hit tab after an open parens, e.g.,

import os
os.open(

Or, execute the cell with a trailing ? and help will open in the bottom pane, e.g,.

import os
os.open?

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