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- - - - Possible arch-sensitive ints (32/64)
    - - block of consts:
        const
        (a = 1
        b = 2)
      - iota - auto increment
    - - Empty interface to handle any object: interface{}
      - embedded interface:
        type X interface {
        otherInterface
        }
      - Default interfaces
        
        Stirng() = struct to string
        
        Error() - format error for error type children
      - No explicit declaration (duck typing, check if has method/prop)
    - - len()
    - - re-slice(slice[a:b])
        
        [) type of range (excluding on right)
        
        re-slice with left limit changes cap
      - len() vs cap()
      - make() (allocates a zeroed array)
      - append (doubles the capacity if not enough)
    - - e.g.
        a map[string]string = map[string]string{"x": "a"}
      - make()
    - - With dynamic parts: "text\n"
        Exact string: `text` (back-ticks)
        Bytes: '\x27'
      - Rune (char) != Byte
        
        utf8.RuneCountInString - count of chars
    - - custom error types via type alias