eland/dataframe.py (10 lines):
	- line 106: (TODO - currently index_field must also be a field if not _id)
	- line 420: # TODO Clean up this error checking
	- line 563: TODO - add additional pandas.DataFrame.count features
	- line 978: # TODO - this is different from pd.DataFrame as we shouldn't
	- line 1086: # TODO - this results in different output to pandas
	- line 1087: # TODO - the 'x' character is different and this gets added after the </div>
	- line 1869: # TODO dropna=False
	- line 1994: TODO - add additional pandas arguments
	- line 2006: TODO - add link to eland user guide
	- line 2031: # Use pandas eval to parse query - TODO validate this further


eland/series.py (8 lines):
	- line 274: TODO - implement remainder of pandas arguments
	- line 1436: TODO - implement remainder of pandas arguments, currently non-numerics are not supported
	- line 1460: TODO - implement remainder of pandas arguments, currently non-numerics are not supported
	- line 1484: TODO - implement remainder of pandas arguments, currently non-numerics are not supported
	- line 1509: TODO - implement remainder of pandas arguments, currently non-numerics are not supported
	- line 1533: TODO - implement remainder of pandas arguments, currently non-numerics are not supported
	- line 1667: TODO - add additional arguments (current only numeric values supported)
	- line 1694: # def values TODO - not implemented as causes current implementation of query to fail


eland/ndframe.py (7 lines):
	- line 178: # Don't default to pandas, just return approximation TODO - make this more accurate
	- line 196: TODO - implement remainder of pandas arguments, currently non-numerics are not supported
	- line 244: TODO - implement remainder of pandas arguments, currently non-numerics are not supported
	- line 292: TODO - implement remainder of pandas arguments, currently non-numerics are not supported
	- line 480: TODO - implement remainder of pandas arguments, currently non-numerics are not supported
	- line 546: TODO - implement remainder of pandas arguments
	- line 618: TODO - add additional arguments (current only numeric values supported)


eland/query_compiler.py (4 lines):
	- line 230: TODO - explain how lists are handled
	- line 232: TODO - an option here is to use Elasticsearch's multi-field matching instead of pandas treatment of lists
	- line 317: # (TODO - not so efficient for large number of fields and filtered mapping)
	- line 340: # TODO - create a lookup for script fields and dtypes to only map 'Infinity'


eland/common.py (3 lines):
	- line 268: # TODO investigate if there is a way of converting this
	- line 277: # TODO investigate if there is a way of converting this
	- line 307: # TODO investigate how we could generate this just once for a bulk read.


eland/field_mappings.py (3 lines):
	- line 480: TODO - add additional mapping types
	- line 503: # Map all to 64-bit - TODO map to specifics: int32 -> int etc.
	- line 782: TODO - not very efficient, but unless called per row, this should be ok


eland/operations.py (3 lines):
	- line 386: # TODO for dropna=False, Check If field is timestamp or boolean or numeric,
	- line 849: TODO Not yet implemented
	- line 1353: # TODO - this is not necessarily valid as the field may not exist in ALL these docs


eland/index.py (2 lines):
	- line 28: TODO - This currently has very different behaviour than pandas.Index
	- line 86: # TODO resolve this hack to make this 'iterable'


eland/tasks.py (2 lines):
	- line 380: # TODO: Remove this once 'query_params' becomes a dataclass.
	- line 385: f"TODO code path - combine multiple ops "


eland/etl.py (1 line):
	- line 449: TODO - currently the eland.DataFrame may not retain the order of the data in the csv.


eland/ml/ml_model.py (1 line):
	- line 103: of type float. TODO: support DataFrame and other formats


eland/query.py (1 line):
	- line 250: TODO Not yet implemented


noxfile.py (1 line):
	- line 79: # TODO: When all files are typed we can change this to .run("mypy", "--strict", "eland/")