code: public function setProfilePhoto($mediaUri)
      {
          //Process the requested media file.
          $processedMedia = $this->processMediaUri($mediaUri);
          if ( ! $processedMedia) {
              return false;
          }
  
          //Send media file.
          $result = $this->exec('set_profile_photo ' . $processedMedia['filepath']);
  
          //Clean up if media file came from REMOTE address
          $this->cleanUpMedia($processedMedia);
  
          return $result;
      }
docs: Sets the profile picture for the logged in user
  
  The photo will be cropped to square
  
  @param string $mediaUri Either a URL or a local filename of the photo you wish to set
  
  @uses     exec()
  @return bool|string