class_docstr: A Function class used to hold single-objective functions.
class_docstr_tok: ["A","Function","class","used","to","hold","single-objective","functions","."]
docstr: callable: Points to the actual function.
docstr_tok: ["callable",":","Points","to","the","actual","function","."]
code: def pointer(self) -> callable:
      """callable: Points to the actual function."""
  
      return self._pointer
  
file_path: opytimizer/opytimizer/core/function.py
imports: from inspect import signature
  import numpy
  import opytimizer.utils.exception
  from opytimizer.utils import logging
label_desc: Use image node_id 3 for calling the Function obj's underlying member method code with example usage: obj.pointer() and returns: self