def downgrade():
op.drop_index(op.f('<STR_LIT>'),<EOL>table_name='<STR_LIT>')<EOL>op.drop_index(op.f('<STR_LIT>'),<EOL>table_name='<STR_LIT>')<EOL>op.drop_index(op.f('<STR_LIT>'),<EOL>table_name='<STR_LIT>')<EOL>op.drop_table('<STR_LIT>')<EOL>op.drop_table('<STR_LIT>')<EOL>
Downgrade database.