class_docstr: Abstract interface for a Guild plugin.
docstr: Called in preparation of an operation command environment.
  
  Plugins should implement this to provide operation specific environment
  variables for use in a run.
docstr_tok: ["Called","in","preparation","of","an","operation","command","environment",".","Plugins","should","implement","this","to","provide","operation","specific","environment","variables","for","use","in","a","run","."]
code: def apply_cmd_env(self, op, cmd_env):
      """Called in preparation of an operation command environment.
  
      Plugins should implement this to provide operation specific environment
      variables for use in a run.
      """
  
imports: import logging
  from guild import __pkgdir__
  from guild import entry_point_util
label_desc: Use image node_id 11 for calling the Plugin obj's underlying member method code with example usage: obj.apply_cmd_env(op, cmd_env) without return types