old_contents: # encoding: utf-8
  
  """
  .. codeauthor:: Tsuyoshi Hombashi <gogogo.vm@gmail.com>
  """
  
  from __future__ import absolute_import
  from __future__ import unicode_literals
  
  import warnings
  
  from ._const import StrictLevel
  
  
  def is_hex(value):
      try:
          int(value, 16)
      except (TypeError, ValueError):
          return False
  
      return True
  
  
  def _is_list(value):
      return isinstance(value, list)
  
  
  def _is_tuple(value):
      return isinstance(value, tuple)
  
  
  def is_list_or_tuple(value):
      """
      .. warning::
  
          This function will be deleted in the future.
      """
  
      return any([_is_list(value), _is_tuple(value)])
  
  
  def is_null_string(value):
      from .type import NullString
  
      return NullString(value, strict_level=StrictLevel.MIN).is_type()
  
  
  def is_not_null_string(value):
      from .type import String
  
      return String(value, strict_level=StrictLevel.MAX).is_type()
  
  
  def is_empty_string(value):
      warnings.warn(
          "is_empty_string function will be deleted in the future, "
          "use is_null_string instead."
      )
  
      return is_null_string(value)
  
  
  def is_not_empty_string(value):
      warnings.warn(
          "is_not_empty_string function will be deleted in the future, "
          "use is_not_null_string instead."
      )
  
      return is_not_null_string(value)
  
  
  def is_empty_sequence(value):
      try:
          return value is None or len(value) == 0
      except TypeError:
          return False
  
  
  def is_not_empty_sequence(value):
      try:
          return len(value) > 0
      except TypeError:
          return False
  
new_contents: # encoding: utf-8
  
  """
  .. codeauthor:: Tsuyoshi Hombashi <gogogo.vm@gmail.com>
  """
  
  from __future__ import absolute_import
  from __future__ import unicode_literals
  
  import warnings
  
  from ._const import StrictLevel
  
  
  def is_hex(value):
      try:
          int(value, 16)
      except (TypeError, ValueError):
          return False
  
      return True
  
  
  def _is_list(value):
      return isinstance(value, list)
  
  
  def _is_tuple(value):
      return isinstance(value, tuple)
  
  
  def is_list_or_tuple(value):
      """
      .. warning::
  
          This function will be deleted in the future.
      """
  
      return any([_is_list(value), _is_tuple(value)])
  
  
  def is_null_string(value):
      from .type import NullString
  
      return NullString(value, strict_level=StrictLevel.MIN).is_type()
  
  
  def is_not_null_string(value):
      from .type import String
  
      return String(value, strict_level=StrictLevel.MAX).is_type()
  
  
  def is_empty_string(value):
      warnings.warn(
          "is_empty_string() will be deleted in the future, "
          "use is_null_string instead.",
          DeprecationWarning
      )
  
      return is_null_string(value)
  
  
  def is_not_empty_string(value):
      warnings.warn(
          "is_not_empty_string() will be deleted in the future, "
          "use is_not_null_string instead.",
          DeprecationWarning
      )
  
      return is_not_null_string(value)
  
  
  def is_empty_sequence(value):
      try:
          return value is None or len(value) == 0
      except TypeError:
          return False
  
  
  def is_not_empty_sequence(value):
      try:
          return len(value) > 0
      except TypeError:
          return False
  
subject: Update warnings