def __init__(<EOL>self,<EOL>from_email=None,<EOL>to_emails=None,<EOL>subject=None,<EOL>plain_text_content=None,<EOL>html_content=None,<EOL>global_substitutions=None,<EOL>is_multiple=False):
self._attachments = None<EOL>self._categories = None<EOL>self._contents = None<EOL>self._custom_args = None<EOL>self._headers = None<EOL>self._personalizations = []<EOL>self._sections = None<EOL>self._asm = None<EOL>self._batch_id = None<EOL>self._from_email = None<EOL>self._ip_pool_name = None<EOL>self._mail_settings = None<EOL>self._reply_to = None<EOL>self._send_at = None<EOL>self._subject = None<EOL>self._template_id = None<EOL>self._tracking_settings = None<EOL>if from_email is not None:<EOL><INDENT>self.from_email = from_email<EOL><DEDENT>if to_emails is not None:<EOL><INDENT>self.add_to(to_emails, global_substitutions, is_multiple)<EOL><DEDENT>if subject is not None:<EOL><INDENT>self.subject = subject<EOL><DEDENT>if plain_text_content is not None:<EOL><INDENT>self.add_content(plain_text_content, MimeType.text)<EOL><DEDENT>if html_content is not None:<EOL><INDENT>self.add_content(html_content, MimeType.html)<EOL><DEDENT>
Creates the response body for a v3/mail/send API call

:param from_email: The email address of the sender
:type from_email: From, tuple, optional
:param subject: The subject of the email
:type subject: Subject, optional
:param to_emails: The email address of the recipient
:type to_emails: To, tuple, optional
:param plain_text_content: The plain text body of the email
:type plain_text_content: string, optional
:param html_content: The html body of the email
:type html_content: string, optional