The namespace containing the list of possible key codes for the keyboard. The list
is the following: A, ALT, B, BACK_SLASH, BACKSPACE, BACKTICK, BRACKET_LEFT_FIREFOX, BRACKET_RIGHT_FIREFOX, C, CAPS_LOCK, CLOSED_BRACKET, COLON, COMMA, COMMA_FIREFOX, COMMA_FIREFOX_WINDOWS, CTRL, D, DELETE, DOWN, E, EIGHT, END, ENTER, ESC, F, F1, F2, F3, F4, F5, F6, F7, F8, F9, F10, F11, F12, FIVE, FORWARD_SLASH, FOUR, G, H, HOME, I, INSERT, J, K, L, LEFT, M, MINUS, N, NINE, NUMPAD_ADD, NUMPAD_EIGHT, NUMPAD_FIVE, NUMPAD_FOUR, NUMPAD_NINE, NUMPAD_ONE, NUMPAD_SEVEN, NUMPAD_SIX, NUMPAD_SUBTRACT, NUMPAD_THREE, NUMPAD_TWO, NUMPAD_ZERO, O, ONE, OPEN_BRACKET, P, PAGE_DOWN, PAGE_UP, PAUSE, PERIOD, PLUS, PRINT_SCREEN, Q, QUOTES, R, RIGHT, S, SEMICOLON, SEMICOLON_FIREFOX, SEVEN, SHIFT, SIX, SPACE, T, TAB, THREE, TWO, U, UP, V, W, X, Y, Z, ZERO,
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