src/Message/AttachmentBuilder.php
public function setPretext($pretext, $markdown = false)
    {
        $this->data['pretext'] = $pretext;
        $this->markdownInPretext = $markdown;

        return $this;
    }
public function setPretext($pretext, $markdown = false)
    {
        $this->data['pretext'] = $pretext;
        $this->markdownInPretext = $markdown;

        return $this;
    }
public function setPretext ( $ pretext , $ markdown = false ) { $ this -> data [ 'pretext' ] = $ pretext ; $ this -> markdownInPretext = $ markdown ; return $ this ; }
Sets the attachment pretext.

This is optional text that appears above the message attachment block.

@param string $pretext The attachment pretext.
@param bool $markdown Enables or disables Markdown parsing in the pretext.
@return $this
Sets the attachment pretext .