for face in faces:
    for vert in face.verts:
        vert_texture_coordinates = UVMap.get_coordinates(vert)
        # And here I want to get something like (13, 37)
        # representing pixel on my image texture

for face in faces:
    for loop in face.loops:
        uv = loop[uv_layer].uv
        # Getting <Vector (0.1116, 0.9408)>