"""empty message

Revision ID: 6c6fb2b7f229
Revises: a67119aa3ee5
Create Date: 2019-09-28 13:38:09.550747

"""

# revision identifiers, used by Alembic.
revision = '6c6fb2b7f229'
down_revision = 'a67119aa3ee5'

from alembic import op
import sqlalchemy as sa


def upgrade():
    # ### commands auto generated by Alembic - please adjust! ###
    op.add_column('bill', sa.Column('external_link', sa.UnicodeText(), nullable=True))
    # ### end Alembic commands ###


def downgrade():
    # ### commands auto generated by Alembic - please adjust! ###
    op.drop_column('bill', 'external_link')
    # ### end Alembic commands ###