code: def dumps(o, encoder=None):
      """Stringifies input dict as toml
  
      Args:
          o: Object to dump into toml
          encoder: The ``TomlEncoder`` to use for constructing the output string
  
      Returns:
          String containing the toml corresponding to dict
  
      Examples:
          ```python
          >>> import toml
          >>> output = {
          ... 'a': "I'm a string",
          ... 'b': ["I'm", "a", "list"],
          ... 'c': 2400
          ... }
          >>> toml.dumps(output)
          'a = "I\'m a string"\nb = [ "I\'m", "a", "list",]\nc = 2400\n'
          ```
      """
  
      retval = ""
      if encoder is None:
          encoder = TomlEncoder(o.__class__)
      addtoretval, sections = encoder.dump_sections(o, "")
      retval += addtoretval
      outer_objs = [id(o)]
      while sections:
          section_ids = [id(section) for section in sections.values()]
          for outer_obj in outer_objs:
              if outer_obj in section_ids:
                  raise ValueError("Circular reference detected")
          outer_objs += section_ids
          newsections = encoder.get_empty_table()
          for section in sections:
              addtoretval, addtosections = encoder.dump_sections(
                  sections[section], section
              )
  
              if addtoretval or (not addtoretval and not addtosections):
                  if retval and retval[-2:] != "\n\n":
                      retval += "\n"
                  retval += "[" + section + "]\n"
                  if addtoretval:
                      retval += addtoretval
              for s in addtosections:
                  newsections[section + "." + s] = addtosections[s]
          sections = newsections
      return retval
  
imports: import datetime
  import re
  import sys
  from decimal import Decimal
  from toml.decoder import InlineTableDict
label_desc: Use image node_id 2 for calling a global function with example usage: dumps(o, encoder) and returns: retval