Code Generation for Pipelines and Components

[bchen1116]

fix #1028

Design Doc here

Component docs here
Pipeline docs here
Api docs here and here

Requirements:

• Functions to generate pipeline or component code as a string so users can copy and use it elsewhere
• Documentation for usage
• Support for custom components

[codecov]

Codecov Report

Merging #1306 into main will increase coverage by 0.01%.
The diff coverage is 100.00%.

@@            Coverage Diff             @@
##             main    #1306      +/-   ##
==========================================
+ Coverage   99.95%   99.95%   +0.01%     
==========================================
  Files         213      213              
  Lines       13656    13795     +139     
==========================================
+ Hits        13649    13788     +139     
  Misses          7        7              

Impacted Files	Coverage Δ
evalml/pipelines/components/utils.py	100.00% <100.00%> (ø)
evalml/pipelines/utils.py	100.00% <100.00%> (ø)
evalml/tests/component_tests/test_components.py	100.00% <100.00%> (ø)
evalml/tests/pipeline_tests/test_pipelines.py	100.00% <100.00%> (ø)

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[dsherry]

@bchen1116 this is awesome!!! Fancy implementation for the pipeline method, wow, I like it. Means we won't have to update every time we add a new pipeline attribute.

I left a few comments but nothing major. I like the API!

I do have one consideration: for non-evalml component definitions, perhaps we should include the entire definition in the generated code. Like in your docs example, the generated code would include MyDropNullColumns. What do you think? My reasoning is that if its not included in evalml, we should include it in the code gen.

[dsherry]

Followed up with @bchen1116 , we're gonna pass on including custom component source in the generated code, because the implementation for handling imports would be complex. We'll wait to get a user request / feedback before adding the ability to include custom components in the generated code output.

[dsherry]

🚢 ✨