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• set_hutch(h, create=False)
  Set the default hutch to h.  If create is True, create any necessary DB entries.
• add_alias(alias)
  Add a new alias to the default hutch.
• add_device_config(cfg)
  Add a new device type collection named cfg.
• get_hutches()
  Return a list of all defined hutches.
• get_aliases(hutch=None)
  Return a list of all aliases for the specified hutch (or the default hutch if the parameter is None).
• get_device_configs()
  Return a list of all device types.
• get_key(alias, hutch=None)
  Return the highest version number for the alias in the specified hutch (or default hutch if None).
• get_devices(key_or_alias, hutch=None)
  Return a list of devices in the specified hutch (or default hutch if None).  key_or_alias specifies the particular configuration to examine:  if it is a string, use the current configuration for this alias and if it is an integer, use the configuration with the specified version number.
• modify_device(alias, value, hutch=None)
  Modify the current configuration for the specified alias in the specified hutch.  value is a typed JSON dictionary where the detName:RO field is the name of the device and detType:RO is the device type.  This raises an exception if there is an error and returns the newly written version number otherwise.
• get_configuration(key_or_alias, device, hutch=None)
  Get the configuration for the specified device in the specified hutch (or the default if this is None).  key_or_alias specifies the particular configuration to examine:  if it is a string, use the current configuration for this alias and if it is an integer, use the configuration with the specified version number ("key").  Internally "key" is used for all lookups by the server-side code below.
• transfer_config(oldhutch, oldalias, olddevice, newalias, newdevice)
  Copy the current configuration for device olddevice with alias oldalias in hutch oldhutch to the current hutch configuration for with alias newalias device newdevice.
• get_history(alias, device, plist, hutch=None)
  Retrieve a history for the list of flattened names in plist for the specified device, alias, and hutch.  The return value is a list of dictionaries, each one with date, key, and all of the plist elements as keys.

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