old_contents: try:
      from archan import Provider, Argument, DSM as ArchanDSM
      from .dsm import DSM as DependenpyDSM
      from .helpers import guess_depth
  
  
      class InternalDependencies(Provider):
          name = 'dependenpy.InternalDependencies'
          description = 'Provide matrix data about internal dependencies ' \
                        'in a set of packages.'
          arguments = (
              Argument('packages', list, 'The list of packages to check for.'),
              Argument('enforce_init', bool, default=True,
                       description='Whether to assert presence of '
                       '__init__.py files in directories.'),
              Argument('depth', int, 'The depth of the matrix to generate.'),
          )
  
          def get_dsm(self, packages, enforce_init=True, depth=None):
              """
              Provide matrix data for internal dependencies in a set of packages.
  
              Args:
                  *packages (list): the list of packages to check for.
                  enforce_init (bool):
                      whether to assert presence of __init__.py files
                      in directories.
                  depth (int): the depth of the matrix to generate.
  
              Returns:
                  archan.DSM: instance of archan DSM.
              """
              dsm = DependenpyDSM(*packages, enforce_init=enforce_init)
              if depth is None:
                  depth = guess_depth(packages)
              matrix = dsm.as_matrix(depth=depth)
              return ArchanDSM(
                  entities=matrix.keys,
                  dependency_matrix=matrix.data
              )
  
  except ImportError:
      class InternalDependencies(object):
          pass
  
new_contents: try:
      from archan import Provider, Argument, DSM as ArchanDSM
      from .dsm import DSM as DependenpyDSM
      from .helpers import guess_depth
  
  
      class InternalDependencies(Provider):
          identifier = 'dependenpy.InternalDependencies'
          name = 'Internal Dependencies'
          description = 'Provide matrix data about internal dependencies ' \
                        'in a set of packages.'
          arguments = (
              Argument('packages', list, 'The list of packages to check for.'),
              Argument('enforce_init', bool, default=True,
                       description='Whether to assert presence of '
                       '__init__.py files in directories.'),
              Argument('depth', int, 'The depth of the matrix to generate.'),
          )
  
          def get_dsm(self, packages, enforce_init=True, depth=None):
              """
              Provide matrix data for internal dependencies in a set of packages.
  
              Args:
                  *packages (list): the list of packages to check for.
                  enforce_init (bool):
                      whether to assert presence of __init__.py files
                      in directories.
                  depth (int): the depth of the matrix to generate.
  
              Returns:
                  archan.DSM: instance of archan DSM.
              """
              dsm = DependenpyDSM(*packages, enforce_init=enforce_init)
              if depth is None:
                  depth = guess_depth(packages)
              matrix = dsm.as_matrix(depth=depth)
              return ArchanDSM(data=matrix.data, entities=matrix.keys)
  
  except ImportError:
      class InternalDependencies(object):
          pass
  
subject: Fix archan provider