code: def _load_line_multiline_str(self, p):
      poffset = 0
      if len(p) < 3:
          return -1, poffset
      if p[0] == "[" and (
          p.strip()[-1] != "]" and self._load_array_isstrarray(p)
      ):
          newp = p[1:].strip().split(",")
          while (
              len(newp) > 1
              and newp[-1][0] != '"'
              and newp[-1][0] != "'"
          ):
              newp = newp[:-2] + [newp[-2] + "," + newp[-1]]
          newp = newp[-1]
          poffset = len(p) - len(newp)
          p = newp
      if p[0] != '"' and p[0] != "'":
          return -1, poffset
      if p[1] != p[0] or p[2] != p[0]:
          return -1, poffset
      if (
          len(p) > 5
          and p[-1] == p[0]
          and p[-2] == p[0]
          and p[-3] == p[0]
      ):
          return -1, poffset
      return len(p) - 1, poffset
  
imports: import datetime
  import io
  from os import linesep
  import re
  import sys
  from toml.tz import TomlTz
label_desc: Use image node_id 7 for calling the TomlDecoder obj's underlying member method code with example usage: obj._load_line_multiline_str(p) and returns: unknown,  poffset, unknown,  poffset, unknown,  poffset, unknown,  poffset, unknown,  poffset