---input---
"""
Some text multiline
"""

"""Some text multiline
"""

"""
Some text multiline"""

---tokens---
'"""\nSome text multiline\n"""' Literal.String
'\n\n'        Text.Whitespace

'"""Some text multiline\n"""' Literal.String
'\n\n'        Text.Whitespace

'"""\nSome text multiline"""' Literal.String
'\n'          Text.Whitespace