text: """empty message
  
  Revision ID: a567c8c13c2f
  Revises: 0b5b55ab34ef
  Create Date: 2018-03-08 16:18:59.412451
  
  """
  from alembic import op
  import sqlalchemy as sa
  from sqlalchemy.dialects import mysql
  
  # revision identifiers, used by Alembic.
  revision = 'a567c8c13c2f'
  down_revision = '0b5b55ab34ef'
  branch_labels = None
  depends_on = None
  
  
  def upgrade():
      # ### commands auto generated by Alembic - please adjust! ###
      op.drop_column('user', 'birthday')
      # ### end Alembic commands ###
  
  
  def downgrade():
      # ### commands auto generated by Alembic - please adjust! ###
      op.add_column('user', sa.Column('birthday', mysql.DATETIME(), nullable=True))
      # ### end Alembic commands ###
  