* initial Agent implementation
* mypy and pylint fixes
* add missing ABC import
* improved prompt template
* refactor and shorten run method
* refactor and shorten run method
* add tests for extracting
* fix mixed up tool_input/observation & make tests more robust
* fix bug with max_iterations and update prompt template
* allow setting prompt_template in Agent init
* remove example yml for agent
* add final prediction to transcript
* add transcript to errors and accept PromptTemplate in init
* simplify if else to elif
Co-authored-by: Silvano Cerza <3314350+silvanocerza@users.noreply.github.com>
* add checks for max_iter<2 and empty list returned by prompt node
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Co-authored-by: Silvano Cerza <3314350+silvanocerza@users.noreply.github.com>
