How to use the melee.enums.ProjectileSubtype function in melee

thelist.append(self.jumps_left)
        thelist.append(int(self.on_ground))
        #We're combining speeds here for simplicity's sake
        thelist.append(self.speed_air_x_self + self.speed_x_attack + self.speed_ground_x_self)
        thelist.append(self.speed_y_self + self.speed_y_attack)
        thelist.append(int(self.off_stage))
        return thelist

"""Represents the state of a projectile (items, lasers, etc...)"""
class Projectile:
    x = 0
    y = 0
    x_speed = 0
    y_speed = 0
    opponent_owned = True
    subtype = enums.ProjectileSubtype.UNKNOWN_PROJECTILE

    """Produces a list representation of the projectile"""
    def tolist(self):
        thelist = []
        thelist.append(self.x)
        thelist.append(self.y)
        thelist.append(self.x_speed)
        thelist.append(self.y_speed)
        thelist.append(int(self.opponent_owned))
        thelist.append(self.subtype.value)
        return thelist

#Only once per new frame that we get a projectile, clear the list out
            if self.newframe:
                self.projectiles.clear()
                self.i = 0
            self.i += 1
            self.newframe = False
            if len(mem_update[1]) < 10:
                self.projectiles.clear()
                return False
            proj = Projectile()
            proj.x = unpack('>f', mem_update[1][0x4c:0x50])[0]
            proj.y = unpack('>f', mem_update[1][0x50:0x54])[0]
            proj.x_speed = unpack('>f', mem_update[1][0x40:0x44])[0]
            proj.y_speed = unpack('>f', mem_update[1][0x44:0x48])[0]
            try:
                proj.subtype = enums.ProjectileSubtype(unpack('>I', mem_update[1][0x10:0x14])[0])
            except ValueError:
                return False
            self.projectiles.append(proj)
        return False