code: def _point_pair_length(point_1, point_2):
      """The length of the direct linear path between two points."""
      return _point_pair_relative_position(point_1, point_2).magnitude()
  
imports: from abc import ABC, abstractmethod
  from sympy.core.singleton import S
  from sympy.physics.mechanics.loads import Force
  from sympy.physics.mechanics.wrapping_geometry import WrappingGeometryBase
  from sympy.physics.vector import Point, dynamicsymbols
label_desc: Use image node_id 2 for calling a global function with example usage: _point_pair_length(point_1, point_2) and returns: _point_pair_relative_position