def update_by_field(self, field_name, field_value, fields, typecast=False, **options):
        """
        Updates the first record to match field name and value.
        Only Fields passed are updated, the rest are left as is.

        >>> record = {'Name': 'John', 'Tel': '540-255-5522'}
        >>> airtable.update_by_field('Name', 'John', record)

        Args:
            field_name (``str``): Name of field to match (column name).
            field_value (``str``): Value of field to match.
            fields(``dict``): Fields to update.
                Must be dictionary with Column names as Key
            typecast(``boolean``): Automatic data conversion from string values.

        Keyword Args:
            view (``str``, optional): The name or ID of a view.
                See :any:`ViewParam`.
            sort (``list``, optional): List of fields to sort by.
                Default order is ascending. See :any:`SortParam`.

        Returns:
            record (``dict``): Updated record
        """
        record = self.match(field_name, field_value, **options)
        return {} if not record else self.update(record['id'], fields, typecast)
Updates the first record to match field name and value.
        Only Fields passed are updated, the rest are left as is.

        >>> record = {'Name': 'John', 'Tel': '540-255-5522'}
        >>> airtable.update_by_field('Name', 'John', record)

        Args:
            field_name (``str``): Name of field to match (column name).
            field_value (``str``): Value of field to match.
            fields(``dict``): Fields to update.
                Must be dictionary with Column names as Key
            typecast(``boolean``): Automatic data conversion from string values.

        Keyword Args:
            view (``str``, optional): The name or ID of a view.
                See :any:`ViewParam`.
            sort (``list``, optional): List of fields to sort by.
                Default order is ascending. See :any:`SortParam`.

        Returns:
            record (``dict``): Updated record