module RuboCop::Cop::MultilineExpressionIndentation

d <-- d is indented relative to a
b c { block }. <-- b is indented relative to a
a.
for indentation of all lines following the first. For example:
In a chain of method calls, we regard the top send node as the base

def left_hand_side(lhs)
  lhs = lhs.parent while lhs.parent && lhs.parent.send_type?
  lhs
end