class_docstr: A subclass of Queue; retrieves entries in priority order (lowest first).
  
  Entries are typically tuples of the form: (priority number, data).
class_docstr_tok: ["A","subclass","of","Queue",";","retrieves","entries","in","priority","order","(","lowest","first",")",".","Entries","are","typically","tuples","of","the","form",":","(","priority","number",",","data",")","."]
code: def _init(self, maxsize):
      self._queue = []
  
imports: import collections
  import heapq
  from types import GenericAlias
  from .None import locks
  from .None import mixins
label_desc: Use image node_id 1 for calling the PriorityQueue obj's underlying member method code with example usage: obj._init(maxsize) without return types