text: # This Python file uses the following encoding: utf-8
  """autogenerated by genpy from vision_msgs/VisionInfo.msg. Do not edit."""
  import codecs
  import sys
  python3 = True if sys.hexversion > 0x03000000 else False
  import genpy
  import struct
  
  import std_msgs.msg
  
  class VisionInfo(genpy.Message):
    _md5sum = "eee36f8dc558754ceb4ef619179d8b34"
    _type = "vision_msgs/VisionInfo"
    _has_header = True  # flag to mark the presence of a Header object
    _full_text = """# Provides meta-information about a visual pipeline.
  #
  # This message serves a similar purpose to sensor_msgs/CameraInfo, but instead
  #   of being tied to hardware, it represents information about a specific
  #   computer vision pipeline. This information stays constant (or relatively
  #   constant) over time, and so it is wasteful to send it with each individual
  #   result. By listening to these messages, subscribers will receive
  #   the context in which published vision messages are to be interpreted.
  # Each vision pipeline should publish its VisionInfo messages to its own topic,
  #   in a manner similar to CameraInfo.
  
  # Used for sequencing
  Header header
  
  # Name of the vision pipeline. This should be a value that is meaningful to an
  #   outside user.
  string method
  
  # Location where the metadata database is stored. The recommended location is
  #   as an XML string on the ROS parameter server, but the exact implementation
  #   and information is left up to the user.
  # The database should store information attached to class ids. Each
  #   class id should map to an atomic, visually recognizable element. This
  #   definition is intentionally vague to allow extreme flexibility. The
  #   elements could be classes in a pixel segmentation algorithm, object classes
  #   in a detector, different people's faces in a face detection algorithm, etc.
  #   Vision pipelines report results in terms of numeric IDs, which map into
  #   this  database.
  # The information stored in this database is, again, left up to the user. The
  #   database could be as simple as a map from ID to class name, or it could
  #   include information such as object meshes or colors to use for
  #   visualization.
  string database_location
  
  # Metadata database version. This counter is incremented
  #   each time the pipeline begins using a new version of the database (useful
  #   in the case of online training or user modifications).
  #   The counter value can be monitored by listeners to ensure that the pipeline
  #   and the listener are using the same metadata.
  int32 database_version
  ================================================================================
  MSG: std_msgs/Header
  # Standard metadata for higher-level stamped data types.
  # This is generally used to communicate timestamped data 
  # in a particular coordinate frame.
  # 
  # sequence ID: consecutively increasing ID 
  uint32 seq
  #Two-integer timestamp that is expressed as:
  # * stamp.sec: seconds (stamp_secs) since epoch (in Python the variable is called 'secs')
  # * stamp.nsec: nanoseconds since stamp_secs (in Python the variable is called 'nsecs')
  # time-handling sugar is provided by the client library
  time stamp
  #Frame this data is associated with
  string frame_id
  """
    __slots__ = ['header','method','database_location','database_version']
    _slot_types = ['std_msgs/Header','string','string','int32']
  
    def __init__(self, *args, **kwds):
      """
      Constructor. Any message fields that are implicitly/explicitly
      set to None will be assigned a default value. The recommend
      use is keyword arguments as this is more robust to future message
      changes.  You cannot mix in-order arguments and keyword arguments.
  
      The available fields are:
         header,method,database_location,database_version
  
      :param args: complete set of field values, in .msg order
      :param kwds: use keyword arguments corresponding to message field names
      to set specific fields.
      """
      if args or kwds:
        super(VisionInfo, self).__init__(*args, **kwds)
        # message fields cannot be None, assign default values for those that are
        if self.header is None:
          self.header = std_msgs.msg.Header()
        if self.method is None:
          self.method = ''
        if self.database_location is None:
          self.database_location = ''
        if self.database_version is None:
          self.database_version = 0
      else:
        self.header = std_msgs.msg.Header()
        self.method = ''
        self.database_location = ''
        self.database_version = 0
  
    def _get_types(self):
      """
      internal API method
      """
      return self._slot_types
  
    def serialize(self, buff):
      """
      serialize message into buffer
      :param buff: buffer, ``StringIO``
      """
      try:
        _x = self
        buff.write(_get_struct_3I().pack(_x.header.seq, _x.header.stamp.secs, _x.header.stamp.nsecs))
        _x = self.header.frame_id
        length = len(_x)
        if python3 or type(_x) == unicode:
          _x = _x.encode('utf-8')
          length = len(_x)
        buff.write(struct.Struct('<I%ss'%length).pack(length, _x))
        _x = self.method
        length = len(_x)
        if python3 or type(_x) == unicode:
          _x = _x.encode('utf-8')
          length = len(_x)
        buff.write(struct.Struct('<I%ss'%length).pack(length, _x))
        _x = self.database_location
        length = len(_x)
        if python3 or type(_x) == unicode:
          _x = _x.encode('utf-8')
          length = len(_x)
        buff.write(struct.Struct('<I%ss'%length).pack(length, _x))
        _x = self.database_version
        buff.write(_get_struct_i().pack(_x))
      except struct.error as se: self._check_types(struct.error("%s: '%s' when writing '%s'" % (type(se), str(se), str(locals().get('_x', self)))))
      except TypeError as te: self._check_types(ValueError("%s: '%s' when writing '%s'" % (type(te), str(te), str(locals().get('_x', self)))))
  
    def deserialize(self, str):
      """
      unpack serialized message in str into this message instance
      :param str: byte array of serialized message, ``str``
      """
      if python3:
        codecs.lookup_error("rosmsg").msg_type = self._type
      try:
        if self.header is None:
          self.header = std_msgs.msg.Header()
        end = 0
        _x = self
        start = end
        end += 12
        (_x.header.seq, _x.header.stamp.secs, _x.header.stamp.nsecs,) = _get_struct_3I().unpack(str[start:end])
        start = end
        end += 4
        (length,) = _struct_I.unpack(str[start:end])
        start = end
        end += length
        if python3:
          self.header.frame_id = str[start:end].decode('utf-8', 'rosmsg')
        else:
          self.header.frame_id = str[start:end]
        start = end
        end += 4
        (length,) = _struct_I.unpack(str[start:end])
        start = end
        end += length
        if python3:
          self.method = str[start:end].decode('utf-8', 'rosmsg')
        else:
          self.method = str[start:end]
        start = end
        end += 4
        (length,) = _struct_I.unpack(str[start:end])
        start = end
        end += length
        if python3:
          self.database_location = str[start:end].decode('utf-8', 'rosmsg')
        else:
          self.database_location = str[start:end]
        start = end
        end += 4
        (self.database_version,) = _get_struct_i().unpack(str[start:end])
        return self
      except struct.error as e:
        raise genpy.DeserializationError(e)  # most likely buffer underfill
  
  
    def serialize_numpy(self, buff, numpy):
      """
      serialize message with numpy array types into buffer
      :param buff: buffer, ``StringIO``
      :param numpy: numpy python module
      """
      try:
        _x = self
        buff.write(_get_struct_3I().pack(_x.header.seq, _x.header.stamp.secs, _x.header.stamp.nsecs))
        _x = self.header.frame_id
        length = len(_x)
        if python3 or type(_x) == unicode:
          _x = _x.encode('utf-8')
          length = len(_x)
        buff.write(struct.Struct('<I%ss'%length).pack(length, _x))
        _x = self.method
        length = len(_x)
        if python3 or type(_x) == unicode:
          _x = _x.encode('utf-8')
          length = len(_x)
        buff.write(struct.Struct('<I%ss'%length).pack(length, _x))
        _x = self.database_location
        length = len(_x)
        if python3 or type(_x) == unicode:
          _x = _x.encode('utf-8')
          length = len(_x)
        buff.write(struct.Struct('<I%ss'%length).pack(length, _x))
        _x = self.database_version
        buff.write(_get_struct_i().pack(_x))
      except struct.error as se: self._check_types(struct.error("%s: '%s' when writing '%s'" % (type(se), str(se), str(locals().get('_x', self)))))
      except TypeError as te: self._check_types(ValueError("%s: '%s' when writing '%s'" % (type(te), str(te), str(locals().get('_x', self)))))
  
    def deserialize_numpy(self, str, numpy):
      """
      unpack serialized message in str into this message instance using numpy for array types
      :param str: byte array of serialized message, ``str``
      :param numpy: numpy python module
      """
      if python3:
        codecs.lookup_error("rosmsg").msg_type = self._type
      try:
        if self.header is None:
          self.header = std_msgs.msg.Header()
        end = 0
        _x = self
        start = end
        end += 12
        (_x.header.seq, _x.header.stamp.secs, _x.header.stamp.nsecs,) = _get_struct_3I().unpack(str[start:end])
        start = end
        end += 4
        (length,) = _struct_I.unpack(str[start:end])
        start = end
        end += length
        if python3:
          self.header.frame_id = str[start:end].decode('utf-8', 'rosmsg')
        else:
          self.header.frame_id = str[start:end]
        start = end
        end += 4
        (length,) = _struct_I.unpack(str[start:end])
        start = end
        end += length
        if python3:
          self.method = str[start:end].decode('utf-8', 'rosmsg')
        else:
          self.method = str[start:end]
        start = end
        end += 4
        (length,) = _struct_I.unpack(str[start:end])
        start = end
        end += length
        if python3:
          self.database_location = str[start:end].decode('utf-8', 'rosmsg')
        else:
          self.database_location = str[start:end]
        start = end
        end += 4
        (self.database_version,) = _get_struct_i().unpack(str[start:end])
        return self
      except struct.error as e:
        raise genpy.DeserializationError(e)  # most likely buffer underfill
  
  _struct_I = genpy.struct_I
  def _get_struct_I():
      global _struct_I
      return _struct_I
  _struct_3I = None
  def _get_struct_3I():
      global _struct_3I
      if _struct_3I is None:
          _struct_3I = struct.Struct("<3I")
      return _struct_3I
  _struct_i = None
  def _get_struct_i():
      global _struct_i
      if _struct_i is None:
          _struct_i = struct.Struct("<i")
      return _struct_i
  