--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/env/lib/python3.9/site-packages/ruamel/yaml/events.py	Mon Mar 22 18:12:50 2021 +0000
@@ -0,0 +1,157 @@
+# coding: utf-8
+
+# Abstract classes.
+
+if False:  # MYPY
+    from typing import Any, Dict, Optional, List  # NOQA
+
+
+def CommentCheck():
+    # type: () -> None
+    pass
+
+
+class Event(object):
+    __slots__ = 'start_mark', 'end_mark', 'comment'
+
+    def __init__(self, start_mark=None, end_mark=None, comment=CommentCheck):
+        # type: (Any, Any, Any) -> None
+        self.start_mark = start_mark
+        self.end_mark = end_mark
+        # assert comment is not CommentCheck
+        if comment is CommentCheck:
+            comment = None
+        self.comment = comment
+
+    def __repr__(self):
+        # type: () -> Any
+        attributes = [
+            key
+            for key in ['anchor', 'tag', 'implicit', 'value', 'flow_style', 'style']
+            if hasattr(self, key)
+        ]
+        arguments = ', '.join(['%s=%r' % (key, getattr(self, key)) for key in attributes])
+        if self.comment not in [None, CommentCheck]:
+            arguments += ', comment={!r}'.format(self.comment)
+        return '%s(%s)' % (self.__class__.__name__, arguments)
+
+
+class NodeEvent(Event):
+    __slots__ = ('anchor',)
+
+    def __init__(self, anchor, start_mark=None, end_mark=None, comment=None):
+        # type: (Any, Any, Any, Any) -> None
+        Event.__init__(self, start_mark, end_mark, comment)
+        self.anchor = anchor
+
+
+class CollectionStartEvent(NodeEvent):
+    __slots__ = 'tag', 'implicit', 'flow_style', 'nr_items'
+
+    def __init__(
+        self,
+        anchor,
+        tag,
+        implicit,
+        start_mark=None,
+        end_mark=None,
+        flow_style=None,
+        comment=None,
+        nr_items=None,
+    ):
+        # type: (Any, Any, Any, Any, Any, Any, Any, Optional[int]) -> None
+        NodeEvent.__init__(self, anchor, start_mark, end_mark, comment)
+        self.tag = tag
+        self.implicit = implicit
+        self.flow_style = flow_style
+        self.nr_items = nr_items
+
+
+class CollectionEndEvent(Event):
+    __slots__ = ()
+
+
+# Implementations.
+
+
+class StreamStartEvent(Event):
+    __slots__ = ('encoding',)
+
+    def __init__(self, start_mark=None, end_mark=None, encoding=None, comment=None):
+        # type: (Any, Any, Any, Any) -> None
+        Event.__init__(self, start_mark, end_mark, comment)
+        self.encoding = encoding
+
+
+class StreamEndEvent(Event):
+    __slots__ = ()
+
+
+class DocumentStartEvent(Event):
+    __slots__ = 'explicit', 'version', 'tags'
+
+    def __init__(
+        self,
+        start_mark=None,
+        end_mark=None,
+        explicit=None,
+        version=None,
+        tags=None,
+        comment=None,
+    ):
+        # type: (Any, Any, Any, Any, Any, Any) -> None
+        Event.__init__(self, start_mark, end_mark, comment)
+        self.explicit = explicit
+        self.version = version
+        self.tags = tags
+
+
+class DocumentEndEvent(Event):
+    __slots__ = ('explicit',)
+
+    def __init__(self, start_mark=None, end_mark=None, explicit=None, comment=None):
+        # type: (Any, Any, Any, Any) -> None
+        Event.__init__(self, start_mark, end_mark, comment)
+        self.explicit = explicit
+
+
+class AliasEvent(NodeEvent):
+    __slots__ = ()
+
+
+class ScalarEvent(NodeEvent):
+    __slots__ = 'tag', 'implicit', 'value', 'style'
+
+    def __init__(
+        self,
+        anchor,
+        tag,
+        implicit,
+        value,
+        start_mark=None,
+        end_mark=None,
+        style=None,
+        comment=None,
+    ):
+        # type: (Any, Any, Any, Any, Any, Any, Any, Any) -> None
+        NodeEvent.__init__(self, anchor, start_mark, end_mark, comment)
+        self.tag = tag
+        self.implicit = implicit
+        self.value = value
+        self.style = style
+
+
+class SequenceStartEvent(CollectionStartEvent):
+    __slots__ = ()
+
+
+class SequenceEndEvent(CollectionEndEvent):
+    __slots__ = ()
+
+
+class MappingStartEvent(CollectionStartEvent):
+    __slots__ = ()
+
+
+class MappingEndEvent(CollectionEndEvent):
+    __slots__ = ()