Relax typing strictness for Plot.theme

[michaelquinn32]

Plot.theme currently accepts a dict[str, Any], which unfortunately throws a pytype typing error when passed another similar mapping, like an immutable dict.

def accepts_dict(d: dict[str, Any]) -> None:
    print(d)

accepts_dict(immutabledict.immutabledict({'a': 1}))
# Error: Function accepts_dict was called with the wrong arguments [wrong-arg-types]
#        Expected: (d: Dict[str, Any], ...)
#        Actually passed: (d: immutabledict.immutabledict[nothing, nothing])

Using collections.abc.Mapping doesn't throw an error.

from collections.abc import Mapping

def accepts_mapping(d: Mappingf[str, Any]) -> None:
    print(d)

accepts_mapping(immutabledict.immutabledict({'a': 1}))

Would you mind relaxing the type specificity for this? Thanks!

[mwaskom]

Yeah that makes sense.