Source code for langchain.tools.gmail.send_message
"""Send Gmail messages."""
import base64
from email.mime.multipart import MIMEMultipart
from email.mime.text import MIMEText
from typing import Any, Dict, List, Optional, Union
from pydantic import BaseModel, Field
from langchain.callbacks.manager import CallbackManagerForToolRun
from langchain.tools.gmail.base import GmailBaseTool
[docs]class SendMessageSchema(BaseModel):
    """Input for SendMessageTool."""
    message: str = Field(
        ...,
        description="The message to send.",
    )
    to: Union[str, List[str]] = Field(
        ...,
        description="The list of recipients.",
    )
    subject: str = Field(
        ...,
        description="The subject of the message.",
    )
    cc: Optional[Union[str, List[str]]] = Field(
        None,
        description="The list of CC recipients.",
    )
    bcc: Optional[Union[str, List[str]]] = Field(
        None,
        description="The list of BCC recipients.",
    )
[docs]class GmailSendMessage(GmailBaseTool):
    """Tool that sends a message to Gmail."""
    name: str = "send_gmail_message"
    description: str = (
        "Use this tool to send email messages." " The input is the message, recipients"
    )
    def _prepare_message(
        self,
        message: str,
        to: Union[str, List[str]],
        subject: str,
        cc: Optional[Union[str, List[str]]] = None,
        bcc: Optional[Union[str, List[str]]] = None,
    ) -> Dict[str, Any]:
        """Create a message for an email."""