def _serialize_fields(point):
output = []<EOL>for k, v in point['<STR_LIT>'].items():<EOL><INDENT>k = escape(k, key_escape)<EOL>if isinstance(v, bool):<EOL><INDENT>output.append(f'<STR_LIT>')<EOL><DEDENT>elif isinstance(v, int):<EOL><INDENT>output.append(f'<STR_LIT>')<EOL><DEDENT>elif isinstance(v, str):<EOL><INDENT>output.append(f'<STR_LIT>')<EOL><DEDENT>elif v is None:<EOL><INDENT>continue<EOL><DEDENT>else:<EOL><INDENT>output.append(f'<STR_LIT>')<EOL><DEDENT><DEDENT>return '<STR_LIT:U+002C>'.join(output)<EOL>
Field values can be floats, integers, strings, or Booleans.