(self, field)
Instantiates this object with the specified attributes.

        `field` is the name of the field by which to group the result set.
Instantiates this object with the specified attributes.
Instantiates this object with the specified attributes .
def __init__(self, field):
        """Instantiates this object with the specified attributes.

        `field` is the name of the field by which to group the result set.

        """
        self.field = field
def __init__ ( self , field ) : self . field = field