class Sus::Identity

def initialize(path, name = nil, line = nil, parent = nil, unique: true)

@parameter unique [Boolean | Symbol] Whether this identity is unique or needs a unique key/line number suffix. 
def initialize(path, name = nil, line = nil, parent = nil, unique: true)
	@path = path
	@name = name
	@line = line
	@parent = parent
	@unique = unique
	
	@key = nil
end