File includes/types/CMB2_Type_Textarea.php

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<?php
/**
 * CMB textarea field type
 *
 * @since  2.2.2
 *
 * @category  WordPress_Plugin
 * @package   CMB2
 * @author    CMB2 team
 * @license   GPL-2.0+
 * @link      https://cmb2.io
 */
class CMB2_Type_Textarea extends CMB2_Type_Counter_Base {

    /**
     * Handles outputting an 'textarea' element
     *
     * @since  1.1.0
     * @param  array $args Override arguments
     * @return string       Form textarea element
     */
    public function render( $args = array() ) {
        $args = empty( $args ) ? $this->args : $args;
        $a = $this->parse_args( 'textarea', array(
            'class' => 'cmb2_textarea',
            'name'  => $this->_name(),
            'id'    => $this->_id(),
            'cols'  => 60,
            'rows'  => 10,
            'value' => $this->field->escaped_value( 'esc_textarea' ),
            'desc'  => $this->_desc( true ),
        ), $args );

        // Add character counter?
        $a = $this->maybe_update_attributes_for_char_counter( $a );

        return $this->rendered(
            sprintf( '<textarea%s>%s</textarea>%s', $this->concat_attrs( $a, array( 'desc', 'value' ) ), $a['value'], $a['desc'] )
        );
    }
}

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