#{
	//requires only that keys support equality
	linear <- {
		key:val <- :k v {
			#{
				key <- k
				val <- v
			}
		}
		els <- #[]
		find <- :tofind {
			idx <- 0
			while: { 
				if: idx < (els length) { 
					((els get: idx) key: ) != tofind
				} else: {false} 
			} do: {
				idx <- idx + 1
			}
			if: idx < (els length) {idx} else: {-1}
		}
		#{
			set <- :k v {
				idx <- find: k
				if: idx < 0 {
					els append: (key: k val: v)
				} else: {
					(els get: idx) val!: v
				}
				self
			}
			
			get <- :k {
				get: k withDefault: false
			}
			
			get:withDefault <- :k default {
				idx <- find: k
				if: idx < 0 {
					default
				} else: {
					(els get: idx) val
				}
			}
		}
	}

}