--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/env/lib/python3.9/site-packages/ruamel/yaml/tokens.py	Mon Mar 22 18:12:50 2021 +0000
@@ -0,0 +1,286 @@
+# # header
+# coding: utf-8
+
+from __future__ import unicode_literals
+
+if False:  # MYPY
+    from typing import Text, Any, Dict, Optional, List  # NOQA
+    from .error import StreamMark  # NOQA
+
+SHOWLINES = True
+
+
+class Token(object):
+    __slots__ = 'start_mark', 'end_mark', '_comment'
+
+    def __init__(self, start_mark, end_mark):
+        # type: (StreamMark, StreamMark) -> None
+        self.start_mark = start_mark
+        self.end_mark = end_mark
+
+    def __repr__(self):
+        # type: () -> Any
+        # attributes = [key for key in self.__slots__ if not key.endswith('_mark') and
+        #               hasattr('self', key)]
+        attributes = [key for key in self.__slots__ if not key.endswith('_mark')]
+        attributes.sort()
+        arguments = ', '.join(['%s=%r' % (key, getattr(self, key)) for key in attributes])
+        if SHOWLINES:
+            try:
+                arguments += ', line: ' + str(self.start_mark.line)
+            except:  # NOQA
+                pass
+        try:
+            arguments += ', comment: ' + str(self._comment)
+        except:  # NOQA
+            pass
+        return '{}({})'.format(self.__class__.__name__, arguments)
+
+    def add_post_comment(self, comment):
+        # type: (Any) -> None
+        if not hasattr(self, '_comment'):
+            self._comment = [None, None]
+        self._comment[0] = comment
+
+    def add_pre_comments(self, comments):
+        # type: (Any) -> None
+        if not hasattr(self, '_comment'):
+            self._comment = [None, None]
+        assert self._comment[1] is None
+        self._comment[1] = comments
+
+    def get_comment(self):
+        # type: () -> Any
+        return getattr(self, '_comment', None)
+
+    @property
+    def comment(self):
+        # type: () -> Any
+        return getattr(self, '_comment', None)
+
+    def move_comment(self, target, empty=False):
+        # type: (Any, bool) -> Any
+        """move a comment from this token to target (normally next token)
+        used to combine e.g. comments before a BlockEntryToken to the
+        ScalarToken that follows it
+        empty is a special for empty values -> comment after key
+        """
+        c = self.comment
+        if c is None:
+            return
+        # don't push beyond last element
+        if isinstance(target, (StreamEndToken, DocumentStartToken)):
+            return
+        delattr(self, '_comment')
+        tc = target.comment
+        if not tc:  # target comment, just insert
+            # special for empty value in key: value issue 25
+            if empty:
+                c = [c[0], c[1], None, None, c[0]]
+            target._comment = c
+            # nprint('mco2:', self, target, target.comment, empty)
+            return self
+        if c[0] and tc[0] or c[1] and tc[1]:
+            raise NotImplementedError('overlap in comment %r %r' % (c, tc))
+        if c[0]:
+            tc[0] = c[0]
+        if c[1]:
+            tc[1] = c[1]
+        return self
+
+    def split_comment(self):
+        # type: () -> Any
+        """ split the post part of a comment, and return it
+        as comment to be added. Delete second part if [None, None]
+         abc:  # this goes to sequence
+           # this goes to first element
+           - first element
+        """
+        comment = self.comment
+        if comment is None or comment[0] is None:
+            return None  # nothing to do
+        ret_val = [comment[0], None]
+        if comment[1] is None:
+            delattr(self, '_comment')
+        return ret_val
+
+
+# class BOMToken(Token):
+#     id = '<byte order mark>'
+
+
+class DirectiveToken(Token):
+    __slots__ = 'name', 'value'
+    id = '<directive>'
+
+    def __init__(self, name, value, start_mark, end_mark):
+        # type: (Any, Any, Any, Any) -> None
+        Token.__init__(self, start_mark, end_mark)
+        self.name = name
+        self.value = value
+
+
+class DocumentStartToken(Token):
+    __slots__ = ()
+    id = '<document start>'
+
+
+class DocumentEndToken(Token):
+    __slots__ = ()
+    id = '<document end>'
+
+
+class StreamStartToken(Token):
+    __slots__ = ('encoding',)
+    id = '<stream start>'
+
+    def __init__(self, start_mark=None, end_mark=None, encoding=None):
+        # type: (Any, Any, Any) -> None
+        Token.__init__(self, start_mark, end_mark)
+        self.encoding = encoding
+
+
+class StreamEndToken(Token):
+    __slots__ = ()
+    id = '<stream end>'
+
+
+class BlockSequenceStartToken(Token):
+    __slots__ = ()
+    id = '<block sequence start>'
+
+
+class BlockMappingStartToken(Token):
+    __slots__ = ()
+    id = '<block mapping start>'
+
+
+class BlockEndToken(Token):
+    __slots__ = ()
+    id = '<block end>'
+
+
+class FlowSequenceStartToken(Token):
+    __slots__ = ()
+    id = '['
+
+
+class FlowMappingStartToken(Token):
+    __slots__ = ()
+    id = '{'
+
+
+class FlowSequenceEndToken(Token):
+    __slots__ = ()
+    id = ']'
+
+
+class FlowMappingEndToken(Token):
+    __slots__ = ()
+    id = '}'
+
+
+class KeyToken(Token):
+    __slots__ = ()
+    id = '?'
+
+    # def x__repr__(self):
+    #     return 'KeyToken({})'.format(
+    #         self.start_mark.buffer[self.start_mark.index:].split(None, 1)[0])
+
+
+class ValueToken(Token):
+    __slots__ = ()
+    id = ':'
+
+
+class BlockEntryToken(Token):
+    __slots__ = ()
+    id = '-'
+
+
+class FlowEntryToken(Token):
+    __slots__ = ()
+    id = ','
+
+
+class AliasToken(Token):
+    __slots__ = ('value',)
+    id = '<alias>'
+
+    def __init__(self, value, start_mark, end_mark):
+        # type: (Any, Any, Any) -> None
+        Token.__init__(self, start_mark, end_mark)
+        self.value = value
+
+
+class AnchorToken(Token):
+    __slots__ = ('value',)
+    id = '<anchor>'
+
+    def __init__(self, value, start_mark, end_mark):
+        # type: (Any, Any, Any) -> None
+        Token.__init__(self, start_mark, end_mark)
+        self.value = value
+
+
+class TagToken(Token):
+    __slots__ = ('value',)
+    id = '<tag>'
+
+    def __init__(self, value, start_mark, end_mark):
+        # type: (Any, Any, Any) -> None
+        Token.__init__(self, start_mark, end_mark)
+        self.value = value
+
+
+class ScalarToken(Token):
+    __slots__ = 'value', 'plain', 'style'
+    id = '<scalar>'
+
+    def __init__(self, value, plain, start_mark, end_mark, style=None):
+        # type: (Any, Any, Any, Any, Any) -> None
+        Token.__init__(self, start_mark, end_mark)
+        self.value = value
+        self.plain = plain
+        self.style = style
+
+
+class CommentToken(Token):
+    __slots__ = 'value', 'pre_done'
+    id = '<comment>'
+
+    def __init__(self, value, start_mark, end_mark):
+        # type: (Any, Any, Any) -> None
+        Token.__init__(self, start_mark, end_mark)
+        self.value = value
+
+    def reset(self):
+        # type: () -> None
+        if hasattr(self, 'pre_done'):
+            delattr(self, 'pre_done')
+
+    def __repr__(self):
+        # type: () -> Any
+        v = '{!r}'.format(self.value)
+        if SHOWLINES:
+            try:
+                v += ', line: ' + str(self.start_mark.line)
+                v += ', col: ' + str(self.start_mark.column)
+            except:  # NOQA
+                pass
+        return 'CommentToken({})'.format(v)
+
+    def __eq__(self, other):
+        # type: (Any) -> bool
+        if self.start_mark != other.start_mark:
+            return False
+        if self.end_mark != other.end_mark:
+            return False
+        if self.value != other.value:
+            return False
+        return True
+
+    def __ne__(self, other):
+        # type: (Any) -> bool
+        return not self.__eq__(other)