Decorators

While the 1:1 mapping of output -> function implementation is powerful, we’ve implemented a few decorators to promote business-logic reuse, as well as to layer on extra capabilities. Source for these decorators can be found in the function_modifiers module.

For reference we list available decorators for Hamilton here. Note: use from hamilton.function_modifiers import DECORATOR_NAME to use these decorators:

• check_output*
  • check_output
  • check_output_custom
  • check_output
• config.when*
  • config
• does
  • does
• extract_columns
  • extract_columns
• extract_fields
  • extract_fields
• inject
  • inject
• load_from
  • load_from
• parameterize
  • ParameterizedExtract
  • source
  • value
  • group
  • parameterize
• parameterize_extract_columns
  • parameterize_extract_columns
• parameterize_frame
  • parameterize_frame
• parameterize_sources
  • parameterize_sources
• parameterized_subdag
  • parameterized_subdag
• parameterize_values
  • parameterize_values
• pipe
  • pipe
• resolve
  • resolve
• save_to
  • save_to
• subdag
  • subdag
• tag*
  • tag
  • tag_outputs
• with_columns
  • with_columns