text: """empty message
  
  Revision ID: f63f351775e4
  Revises: 2d0550b35a19
  Create Date: 2018-12-29 17:39:36.923222
  
  """
  import sqlalchemy as sa
  from alembic import op
  
  # revision identifiers, used by Alembic.
  revision = 'f63f351775e4'
  down_revision = '2d0550b35a19'
  branch_labels = None
  depends_on = None
  
  
  def upgrade():
      # ### commands auto generated by Alembic - please adjust! ###
      op.add_column('user', sa.Column('uuid', sa.String(length=300), nullable=False))
      op.alter_column('user', 'first_name',
                      existing_type=sa.VARCHAR(length=300),
                      nullable=True)
      op.alter_column('user', 'last_name',
                      existing_type=sa.VARCHAR(length=300),
                      nullable=True)
      # ### end Alembic commands ###
  
  
  def downgrade():
      # ### commands auto generated by Alembic - please adjust! ###
      op.alter_column('user', 'last_name',
                      existing_type=sa.VARCHAR(length=300),
                      nullable=False)
      op.alter_column('user', 'first_name',
                      existing_type=sa.VARCHAR(length=300),
                      nullable=False)
      op.drop_column('user', 'uuid')
      # ### end Alembic commands ###
  