code: def indentation(node):
      
      while node.parent is not None and node.parent.type != syms.suite:
          node = node.parent
      if node.parent is None:
          return u""
      # The first three children of a suite are NEWLINE, INDENT, (some other node)
      # INDENT.value contains the indentation for this suite
      # anything after (some other node) has the indentation as its prefix.
      if node.type == token.INDENT:
          return node.value
      elif node.prev_sibling is not None and node.prev_sibling.type == token.INDENT:
          return node.prev_sibling.value
      elif node.prev_sibling is None:
          return u""
      else:
          return node.prefix
docs: Returns the indentation for this node
      Iff a node is in a suite, then it has indentation.