Function flash

flash(
    colorR: number,
    colorG: number,
    colorB: number,
    count: number,
    durationMs: number,
): void
Flashes the player's screen with the provided color a specific amount of times and for the length of the duration provided
Parameters
- colorR: number
  the red component to create a color. Ranges between 1-255
- colorG: number
  the green component to create a color. Ranges between 1-255
- colorB: number
  the blue component to create a color. Ranges between 1-255
- count: number
  the total amount of times to flash the screen before stopping
- durationMs: number
  the duration of time in milliseconds of each flash
Returns void