new_contents: """git_branch
  
  Revision ID: 1c398722878
  Revises: f8d315a31e
  Create Date: 2015-10-18 00:38:22.737519
  
  """
  
  # revision identifiers, used by Alembic.
  revision = '1c398722878'
  down_revision = 'f8d315a31e'
  branch_labels = None
  depends_on = None
  
  from alembic import op
  import sqlalchemy as sa
  
  
  def upgrade():
      ### commands auto generated by Alembic - please adjust! ###
      op.add_column('job', sa.Column('git_branch', sa.Text(), nullable=True))
      ### end Alembic commands ###
  
  
  def downgrade():
      ### commands auto generated by Alembic - please adjust! ###
      op.drop_column('job', 'git_branch')
      ### end Alembic commands ###
  
subject: Add git_branch column migration