def __init__(self, provider):
error_message = "The provider cannot be None. If you meant to use the CollectionProvider pass in a tuple or list"
Guard.against_none(provider, error_message)
if isinstance(provider, (list, tuple)):
self.provider = CollectionProvider(provider)
else:
self.provider = provider
self.expressions = []
self.order_expressions = []
self.group_expression = None
self.parser = ExpressionParser()
