class_docstr: A library of flowchart Node types. Custom libraries may be built to provide 
  each flowchart with a specific set of allowed Node types.
class_docstr_tok: ["A","library","of","flowchart","Node","types",".","Custom","libraries","may","be","built","to","provide","each","flowchart","with","a","specific","set","of","allowed","Node","types","."]
docstr: Return a copy of this library.
docstr_tok: ["Return","a","copy","of","this","library","."]
code: def copy(self):
      """
      Return a copy of this library.
      """
      lib = NodeLibrary()
      lib.nodeList = self.nodeList.copy()
      lib.nodeTree = self.treeCopy(self.nodeTree)
      return lib
  
file_path: pyqtgraph/pyqtgraph/flowchart/NodeLibrary.py
imports: from collections import OrderedDict
  from .Node import Node
label_desc: Use image node_id 5 for calling the NodeLibrary obj's underlying member method code with example usage: obj.copy() and returns: lib