#include <Wire.h>
#include <Adafruit_GFX.h>
#include <Adafruit_SSD1306.h>
#include "SomeClass.h";

Adafruit_SSD1306 display(128, 64, &Wire, -1);
SomeClass sc;  // <<<<< instantiate of SomeClass object

void setup() {
  if(!display.begin(SSD1306_SWITCHCAPVCC, 0x3C)) {
    Serial.println(F("SSD1306 allocation failed"));
    for(;;);
  }
 Serial.begin(9600);
}

void loop() {
  
  display.clearDisplay();
  sc.drawBitmap(&display);  
  display.display();
  delay(1000)ж
}