<SYSTEM_TASK:>
Solve the following problem using Python, implementing the functions described below, one line at a time
<END_TASK>
<USER_TASK:>
Description:
 def _writeText(self, image, text, pos):
 """Write morphed text in Image object."""

        offset = 0
        x, y = pos

        for c in text:
            # Write letter
            c_size = self.font.getsize(c)
            c_image = Image.new('RGBA', c_size, (0, 0, 0, 0))
            c_draw = ImageDraw.Draw(c_image)
            c_draw.text((0, 0), c, font=self.font, fill=(0, 0, 0, 255))

            # Transform
            c_image = self._rndLetterTransform(c_image)

            # Paste onto image
            image.paste(c_image, (x+offset, y), c_image)
            offset += c_size[0]