class RuboCop::Cop::Layout::IndentFirstArrayElement

def base_description(left_parenthesis)

Returns the description of what the correct indentation is based on.
def base_description(left_parenthesis)
  if style == :align_brackets
    'the position of the opening bracket'
  elsif left_parenthesis && style == :special_inside_parentheses
    'the first position after the preceding left parenthesis'
  else
    'the start of the line where the left square bracket is'
  end
end