old_contents: from .errors import *
  from .browser import AggregationBrowser
  from .extensions import get_namespace, initialize_namespace
  
  __all__ = (
              "open_store",
              "Store"
          )
  
  
  def open_store(name, **options):
      """Gets a new instance of a model provider with name `name`."""
  
      ns = get_namespace("stores")
      if not ns:
          ns = initialize_namespace("stores", root_class=Store,
                                    suffix="_store")
  
      try:
          factory = ns[name]
      except KeyError:
          raise CubesError("Unable to find store '%s'" % name)
  
      return factory(**options)
  
  
  def create_browser(type_, cube, store, locale, **options):
      """Creates a new browser."""
  
      ns = get_namespace("browsers")
      if not ns:
          ns = initialize_namespace("browsers", root_class=AggregationBrowser,
                                    suffix="_browser")
  
      try:
          factory = ns[type_]
      except KeyError:
          raise CubesError("Unable to find browser of type '%s'" % type_)
  
      return factory(cube=cube, store=store, locale=locale, **options)
  
  
  class Store(object):
      """Abstract class to find other stores through the class hierarchy."""
      pass
  
new_contents: from .errors import *
  from .browser import AggregationBrowser
  from .extensions import get_namespace, initialize_namespace
  
  __all__ = (
              "open_store",
              "Store"
          )
  
  
  def open_store(name, **options):
      """Gets a new instance of a model provider with name `name`."""
  
      ns = get_namespace("stores")
      if not ns:
          ns = initialize_namespace("stores", root_class=Store,
                                    suffix="_store")
  
      try:
          factory = ns[name]
      except KeyError:
          raise ConfigurationError("Unknown store '%s'" % name)
  
      return factory(**options)
  
  
  def create_browser(type_, cube, store, locale, **options):
      """Creates a new browser."""
  
      ns = get_namespace("browsers")
      if not ns:
          ns = initialize_namespace("browsers", root_class=AggregationBrowser,
                                    suffix="_browser")
  
      try:
          factory = ns[type_]
      except KeyError:
          raise ConfigurationError("Unable to find browser of type '%s'" % type_)
  
      return factory(cube=cube, store=store, locale=locale, **options)
  
  
  class Store(object):
      """Abstract class to find other stores through the class hierarchy."""
      pass
  
subject: Raise ConfigurationError error that causes server to fail and dump whole stacktrace