Kaba class FileStream ed

class FileStream extends Stream

    # functions
    func is_end() -> bool
    func mtime() -> Date
    func pos() -> i32
    func mut seek(delta: i32)
    func mut set_pos(pos: i32)
    func size() -> i32

    # operators
    func mut __lshift__(b: bool)         # FileStream << bool
    func mut __lshift__(i: i32)          # FileStream << i32
    func mut __lshift__(x: f32)          # FileStream << f32
    func mut __lshift__(v: vec3)         # FileStream << vec3
    func mut __lshift__(s: string)       # FileStream << string
    func mut __rshift__(b: bool)         # FileStream >> bool
    func mut __rshift__(i: i32)          # FileStream >> i32
    func mut __rshift__(x: f32)          # FileStream >> f32
    func mut __rshift__(v: vec3)         # FileStream >> vec3
    func mut __rshift__(s: string)       # FileStream >> string