Ast_helper.CfClass fields
val mk : 
  ?loc:loc ->
  ?attrs:attrs ->
  ?docs:Docstrings.docs ->
  Parsetree.class_field_desc ->
  Parsetree.class_fieldval attr : 
  Parsetree.class_field ->
  Parsetree.attribute ->
  Parsetree.class_fieldval inherit_ : 
  ?loc:loc ->
  ?attrs:attrs ->
  Asttypes.override_flag ->
  Parsetree.class_expr ->
  str option ->
  Parsetree.class_fieldval val_ : 
  ?loc:loc ->
  ?attrs:attrs ->
  str ->
  Asttypes.mutable_flag ->
  Parsetree.class_field_kind ->
  Parsetree.class_fieldval method_ : 
  ?loc:loc ->
  ?attrs:attrs ->
  str ->
  Asttypes.private_flag ->
  Parsetree.class_field_kind ->
  Parsetree.class_fieldval constraint_ : 
  ?loc:loc ->
  ?attrs:attrs ->
  Parsetree.core_type ->
  Parsetree.core_type ->
  Parsetree.class_fieldval initializer_ : 
  ?loc:loc ->
  ?attrs:attrs ->
  Parsetree.expression ->
  Parsetree.class_fieldval extension : 
  ?loc:loc ->
  ?attrs:attrs ->
  Parsetree.extension ->
  Parsetree.class_fieldval attribute : ?loc:loc -> Parsetree.attribute -> Parsetree.class_fieldval text : Docstrings.text -> Parsetree.class_field listval virtual_ : Parsetree.core_type -> Parsetree.class_field_kindval concrete : 
  Asttypes.override_flag ->
  Parsetree.expression ->
  Parsetree.class_field_kind