'Creates a single-double-valued v4 Property.
Args:
name: the property name
value: the double value of the property
indexed: whether the value should be indexed
Returns:
an entity_v4_pb.Property'

def __v4_double_property(self, name, value, indexed):

    v4_property = entity_v4_pb.Property()
    v4_property.set_name(name)
    v4_value = v4_property.mutable_value()
    v4_value.set_indexed(indexed)
    v4_value.set_double_value(value)
    return v4_property
