text: """User creation
  
  Revision ID: b6ff1eaa522d
  Revises: ed9f80424147
  Create Date: 2021-12-23 01:04:08.862187
  
  """
  from alembic import op
  import sqlalchemy as sa
  
  
  # revision identifiers, used by Alembic.
  revision = 'b6ff1eaa522d'
  down_revision = 'ed9f80424147'
  branch_labels = None
  depends_on = None
  
  
  def upgrade():
      # ### commands auto generated by Alembic - please adjust! ###
      op.create_table('user',
      sa.Column('id', sa.Integer(), nullable=False),
      sa.Column('username', sa.String(), nullable=True),
      sa.Column('hashed_password', sa.String(), nullable=True),
      sa.Column('time_created', sa.DateTime(timezone=True), server_default=sa.text('now()'), nullable=True),
      sa.Column('time_updated', sa.DateTime(timezone=True), nullable=True),
      sa.PrimaryKeyConstraint('id'),
      sa.UniqueConstraint('username')
      )
      # ### end Alembic commands ###
  
  
  def downgrade():
      # ### commands auto generated by Alembic - please adjust! ###
      op.drop_table('user')
      # ### end Alembic commands ###
  