'Get a nick, in parallel to `get_attribute`.
Attrs:
key (str, optional): The nicks\'s key to search for
category (str, optional): The category of the nicks(s) to search for.
value (str, optional): The attribute value to search for. Note that this
is not a very efficient operation since it will query for a pickled
entity. Mutually exclusive to `strvalue`.
strvalue (str, optional): The str-value to search for. Most Attributes
will not have strvalue set. This is mutually exclusive to the `value`
keyword and will take precedence if given.
obj (Object, optional): On which object the Attribute to search for is.
Returns:
nicks (list): The matching Nicks.'

def get_nick(self, key=None, category=None, value=None, strvalue=None, obj=None):

    return self.get_attribute(key=key, category=category, value=value, strvalue=strvalue, obj=obj)
