info : instance of mne.Info | str 
If str, then it should be a filename to a Raw, Epochs, or Evoked
file with measurement information. If dict, should be an info
dict (such as one from Raw, Epochs, or Evoked). 
 
trans : dict | str | None 
Either a transformation filename (usually made using mne_analyze)
or an info dict (usually opened using read_trans()).
If string, an ending of .fif or .fif.gz will be assumed to
be in FIF format, any other ending will be assumed to be a text
file with a 4x4 transformation matrix (like the –trans MNE-C
option). Can be None to use the identity transform. 
 
src : str | instance of SourceSpaces 
If string, should be a source space filename. Can also be an
instance of loaded or generated SourceSpaces. 
 
bem : dict | str 
Filename of the BEM (e.g., “sample-5120-5120-5120-bem-sol.fif”) to
use, or a loaded sphere model (dict). 
 
fname : str | None 
Destination forward solution filename. If None, the solution
will not be saved. Deprecated and removed in 0.15, Use
mne.write_forward_solution() instead. 
 
meg : bool 
If True (Default), include MEG computations. 
 
eeg : bool 
If True (Default), include EEG computations. 
 
mindist : float 
Minimum distance of sources from inner skull surface (in mm). 
 
ignore_ref : bool 
If True, do not include reference channels in compensation. This
option should be True for KIT files, since forward computation
with reference channels is not currently supported. 
 
overwrite : bool 
If True, the destination file (if it exists) will be overwritten.
If False (default), an error will be raised if the file exists.
Deprecated and removed in 0.15. Use mne.write_forward_solution()
instead. 
 
n_jobs : int 
Number of jobs to run in parallel. 
 
verbose : bool, str, int, or None 
 
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